Mathematics Middle School

If you add​ Natalie's age and​ Fred's age, the result is 42 . If you add​ Fred's age to 4 times​ Natalie's age, the result is 84 . Write and solve a system of equations to find how old Fred and Natalie are

If You Add Natalie's Age And Fred's Age, The Result Is 42 . If You Add Fred's Age To 4 Times Natalie's

Answers

Answer 1
42 x 4 is 168 and 84 x 4 is 336
Answer 2
N+F= 42 and F+( 4 x N) =84

Related Questions

PLEASE EXPLAIN YOUR ANSWER

Answers

Answer:

equivalent to 58/100

and 58%

Step-by-step explanation:

Find the surface area of each prism. ​

Answers

Answer:

105.84 cm²

129 ft²

Step-by-step explanation:

please mark me as brainliest

First one is 105.84cm^2 and the second one is 129ft^2

Place the samples in order from the sample with the greatest variation to the sample with the least variation.
a sample of
20 women
a sample of
5 women
a sample of
45 women
a sample of
60 women

Answers

60 women, 45 women, 20 women, 5women ,

Answer:   The answer is 60, 45, 20, then 5.

Step-by-step explanation:

The variance would increase the bigger the numberr because there is more data. Lets says that the 5 women have a range of 1 and 10 with a meam with a 5. The data separating the mean and the top range is 5. But lets says that the range for the women is 1 and 80, with a mean of 40. The difference in the mean and the top range is 40. 40>5 because there is simply more data. Therefore higher variance.

Alex wants to paint one side of his skateboard ramp with glow-in-the-dark paint, but he needs to know how much area he is painting. Calculate the area of the isosceles trapezoid.

An isosceles trapezoid with a top base of 14 feet, a bottom base of 18 feet, and a height of 8 feet.

112 ft2
128 ft2
132 ft2
144 ft2

Answers

I’m guessing that it’s 132 ft

Answer:132

Step-by-step explanation:

someone help me please answer only if you know

Answers

Answer:

Its the 2nd and 4th one

Step-by-step explanation:

Answer correctly please

Nadine can send or receive a text message for $0.15 or get an unlimited number for $5.00. Write and solve an inequality to find how many messages she can send and receive so the unlimited plan is cheaper than paying for each message.

Answers

Answer: I think it would be 33 1/2 messages

Step-by-step explanation:

15 cents would build up faster and stack up more money and you would have to pay more than just 5.00 each month

Ellen has two pizzas left after a party. One is whole and one has been half-eaten. The whole pizza has a radius of 7 inches. The half eaten pizza has a diameter of 20 inches. Which pizza has a greater circumference. Can you answer this?

Asked by Tg4mer and I help her actually "ask". She don't hv points to post meh

Answers

Answer: half

Step-by-step explanation:

SOMEONE HELP ME WITH THIS PLZ! Determine the distance between (6, -1) and (-1,-1) and whether the line is
horizontal and vertical.
O A. 6 units, horizontal
B. 9 units, vertical
O C. 7 units, horizontal
O D. 5 units, horizontal

Answers

Answer:

B

Step-by-step explanation:

answer is verical go to school bub

Using the distance formula
d = sqrt (x2 - y2) + (x1 - y1)

d = sqrt (-1 + 1) + (6 +1)

d = sqrt 0 + 7

d = sqrt 7

Looking at the points (6, -1) is in quadrant IV, (-1, -1) is in quadrant III. The line is horizontal

Your answer is C. 7 units, horizontal

pls help will mark brainiest

Answers

Answer:

Step-by-step explanation:

Decide if the expressions in each pair are equivalent. Explain how you know.

x+x+x+x and 4x
5x and x+5

Answers

Answer:

x+x+x+x = 4x

5x ≠ x+5

Step-by-step explanation:

x+x+x+x, there are 4 x's, which means they equal to 4x

5x means there are 5 x's, so 5x = x+x+x+x+x, not x+5.

Solve questions 1-8 I just need the answer in (x,y) form

Answers

1 (x= 4, y= 12)
2 (x= 9, y= 2)
3 (x= -7, y= -1)
4 (x= 1, y= 0)
5 (x= 2, y= 1/2)
6 (x= -4, y= 5)
7 (x= 1, y= -5)
8 (x= -4, y= 3)
The girl above is right

Help please me please :') math bad for meh

Answers

Answer:

first one : XAW = 50

second : z = 154

Step-by-step explanation:

Answer:

50

Step-by-step:

XAW angle measures are the same as YAU

YAU is supplementary to angles WAU and so is XAW

Gregory competes in the shot put at his high school. He throws a shot, a sphere-shaped metal ball with a diameter of 5.1 inches.

What is the volume of the shot? Use π≈3.14 Round the answer to the nearest tenth.


17.4 cubic inches

27.2 cubic inches

69.4 cubic inches

555.4 cubic inches

Answers

It’s 17.4 cubic inches

PLEASE HELP QUICK NO LINKS AND NEED EXPLANATIONS

Answers

Answer:

[tex]-3^{2} +4*3+1= 4[/tex]

[tex]-6^{2} +4*6+1= -11[/tex]

[tex]-3^{2} +4*6+1= 16[/tex]

[tex]-6^{2} +4*3+1= -23[/tex]

Step-by-step explanation:

Hopefully one of those were your answer or is. Sorry if I'm wrong on them

The measures of the angles of a triangle are shown in the figure below. Solve for x.43°
(3x+18)°
(6x-16)°

Answers

3x+18+6x-16+43=180
9x+2+43=180
9x=180-45
9x=135
9x=135
x=135/9
x=15
Good luck
X = 15
(3 x 15 + 18) = 63
(6 x 15 - 16) = 74
74 + 63 + 43=180

Complete the explanation of how you can use a table of values, an equation, and a graph to determine whether a function represents a proportional relationship.


To show a function represents a proportional relationship, you can find one of the following; a table of values that includes (___,___) and shows a constant rate of change its equation is in the form y = ____, or its graph is a _____.








HELPPPPP

Answers

Answer:

The equation that represents a proportional relationship, or a line, is y=kx, where k is the constant of proportionality. Use k=yx from either a table or a graph to find k and create the equation.

Step-by-step explanation:

I don't know if this helps!

The solution is,

The equation that represents a proportional relationship, or a line, is y=kx, where k is the constant of proportionality. Use k=yx from either a table or a graph to find k and create the equation.

What is function?

Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable.

here, we have,

given that,

we have to Complete the explanation of how you can use a table of values, an equation, and a graph to determine whether a function represents a proportional relationship.

now, we know,

The equation that represents a proportional relationship, or a line, is y=kx,

where k is the constant of proportionality.

Use k=yx from either a table or a graph to find k and create the equation.

To learn more on function click:

brainly.com/question/21145944

#SPJ7

plss help ASAP :))))))))))

Answers

Answer:

43in

it might be wrong but that's what I got

Answer:

156

Step-by-step explanation:

All you have to do is 3x6x4 then 6x7x2 then add them together :)

Um if you good at math please help me and i will give you brainliest

Answers

Answer: A=20.8, B=20.5, C=10, D=2, E=12.6

Explanation: It takes time, but all you have to do it make an equation adding all the sides together, which equals 85.9. Then find “a” and plug that back in to each side. (I’m pretty sure this is right, but sorry if I’m wrong)

This is worth 16 points if you show work you will get the Brainliest answer if your unable to show work type it for your explanation plz ( no links )

Answers

Answer:

I think the answer is H Because on 2nd table the function is actaully X+2=Y

But on Table 1 It is X times 2=y

your welcome hope i helped have a good day.

Step-by-step explanation:

The answer is H
Only table 1 represents a multiplicative relationship (y=ax, a=2) because in the second table 3 times 2 does not equal to 5 but 6 so the answer is H

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Answers

Answer: you need to show the rest because i dont know. four times what?

Step-by-step explanation:

...

Hope this helps!
1. Gallons
2. G, gallons
3. 4
4. 4g

The following scenario is for #7, 8, 9, and 10 on this test.* A sign in a bakery gives the following options: Option A is 12 cupcakes for $30. Option B is 24 cupcakes for $66. Option C is 50 cupcakes for $129. What is the cost of one cupcake for Option C?

Answers

Answer: $2.58

Step-by-step explanation: 129 ÷ 50 = 2.58

$2.58 129/50 = 2.58 !!!!

REALLY NEED HELP DUE IN 2 HOURS

Answers

Answer:

b

a

c

Step-by-step explanation:

1. b.BBBB2. A.AAA3. CCCCC

help me please I will mark brainiest if you are correct

Answers

-2 3/4, -2, 3/10, 1 1/2

Answer : - 2 3/4, -2, 3/10, 1 1/2

plss help ill mark brainliest

Answers

Answer:

18 hours and 30 minutes. Or 18 and a half hours

Step-by-step explanation:

Answer:

18.5 or 18 and a half hours or 18 hours and 30 mins

Step-by-step explanation:

Help Pleazzzzzzzzzzzzzzzzzzzzz

Answers

Answer:

Step-by-step explanation:

You should do 76 + 48 to get 124 and since the triangle is 180 you would do 180 minus 124 and you would get 56

Answer:

124 degrees

48 + 76 = 124

180 - 124 = 56

Angle 1 = 180 - 56

124 degrees

Proof

the line is = to 180 degrees in total ( just imagine it like 180 degree gymnastics splits )

now you say angle (let's call it angle 4) is 56 degrees. so since it's at the bottom where angle one is, you say 180 - 56

another method is to say, 180 - the angle that you found (angle 4) and the answer is 56 in your case, you still get the same 124 degrees which is now the missing angle for angle 1

What fraction plus what fraction that are the same equals to 3/4 シ

Answers

Answer:

easy. 375/1000 + 375/1000 = 3/4

Step-by-step explanation:

divide 3/4 by two. Your answer should be 0.375.

Then you convert 0.375 into a fraction, which would be 375/1000

Couldnt it just be 1/4 + 2/4? If the denominators are the same they can be added

please answer number 5

Answers

Answer:

35 Cubic Centimeters

Step-by-step explanation:

Answer:

35 Cubic Centimeters

Step-by-step explanation:

Taylor has 6 pounds of naval oranges and 2 1/2 pounds of blood oranges. If she uses 4 3/4 pounds of naval oranges in a​ juice, how many pounds of oranges does she have​ left?

Answers

Answer:

3.65 pounds

Step-by-step explanation:

6 + 2 1/2 (2.5) pounds of oranges = 8.5

4 3/4 = 4.75

8.5 - 4.75 = 3.65

So total oranges = 6 + 2 1/2= 6 5/2 = 17/2 pounds
So that means he uses 3/4 pounds
So the orange he has left is 17/2-3/4=34-3/4
So that equals 31/4 pounds and that’s the answer.
Hope this helps

whats the slope and y-intercept sorry i keep getting it wrong

Answers

Answer:

-2 & 3/2

Step-by-step explanation:

=> -4x - 2y = -3

=> -4x + 3 = 2y

=> (-4/2)x + (3/2) = y

Compare this to y=mx+c

m=slope = -4/2 = - 2

y-intercept = c = 3/2

Answer:

2 & 3/2

hope this helps have a great rest of your day!

Step-by-step explanation:

please help again again wonderful people!
When plotting points on the coordinate plane below, which point would lie on the y-axis?

A coordinate plane.

(0, 1)
(7, 0)
(6, 8)
(8, 2)

Answers

The second numbers would be on the y axis. hope that helps!
I think it is 68 and 82
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