Answer:
(4, 3 )
Step-by-step explanation:
Given the 2 equations
x + 3y = 13 → (1)
5x + 6y = 38 → (2)
Multiplying (1) by - 2 and adding to (2) will eliminate the y- term
- 2x - 6y = - 26 → (3)
Add (2) and (3) term by term to eliminate y
3x + 0 = 12
3x = 12 ( divide both sides by 3 )
x = 4
Substitute x = 4 into either of the 2 equations and solve for y
Substituting into (1)
4 + 3y = 13 ( subtract 4 from both sides )
3y = 9 ( divide both sides by 3 )
y = 3
solution is (4, 3 )
here is a formula:
a=2b-c
what is the value of a if b=12 and c=-4
Answer:
a=28
Step-by-step explanation:
a = 2b - c
a = 2(12) - (-4)
a = 24 + 4
a = 28
by the formula
a=2b-c
if b =12
so, a= 2*12-(-4)
a= 24+4
a=28
Hope you find it helpful
mark it as the brainliest answer
please
thank you
In a carton of 10 eggs three were broken. Steven took 2 unbroken eggs and baked omelettes. A little later he took another egg out of the carton. What is the probability that this egg was not broken?
After he got 2 unbroken eggs there were 5 unbroken ones and 3 broken. In total 8 eggs.
The probability that the egg was not broken is 5/8 or 62,5%.
The formula for probability is given as:
Probability = Number of required events / Total number of outcomes.
The probability of an egg that is not broken is 5/8.
What is probability?
It is the chance of an event to occur from a total number of outcomes.
The formula for probability is given as:
Probability = Number of required events / Total number of outcomes.
We have,
Number of eggs = 10
Number of broken eggs = 3
Number of eggs used = 2
Number of remaining eggs = 8
The number of not broken eggs.
= 8 - 3
= 5
The probability of an egg that is not broken.
= 5/8
Thus,
The probability of an egg that is not broken is 5/8.
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Escribir en forma decimal cada uno de los
siguientes ángulos.
a) 37°56'24" d) 128°43'56"
b) 65°39'50" e) 61°27'43"
c) 72°48'13" f) 100°23'38"
Translate this sentence into a inequality six subtract from y is greater then or equal to -22
Answer:
Step-by-step explanation:
y - 6 ≥ -22
OR
y ≥ 16
Hope that helps!
Construct a triangle ABC in which AB = 7.5 cm,angle A=60° and angle B=30°.Find the measure of angle C.What type of triangle is ABC?
Answer:
I gave the picture and ABC is a right scalene triangle.
Please mark as brainliest.
can someone help me please!!
Answer:
55°
Step-by-step explanation:
∠KJL=180° - 125 = 55°
KL=KJ
so, ∠KJL= ∠KLJ =55°
Maria's family drove 140 mi to her grandparents' house and averaged 56 mi/h on the way there. On the return trip, they averaged 50 mi/h.
What was the total time Maria's family spent driving to and from her grandparents' house?
2.5 h
2.6 h
5.2 h
5.3 h
Answer:
5.3!
Step-by-step explanation:
I took the test on k12 mathematics :)
Answer ASAP pls pls
Answer:
30 x 24 = 720
720 / 2 = 360
360 inches squared
I NEED HELP (look below)
Answer:
e=mc²
Step-by-step explanation:
as e=mc² so e=mc square of mc donalds
Answer:
Step-by-step explanation:
Points earned for 'w' words + points earned for each 6-letter word - the points taken away for 't' tiles that are not used
= 10w + 5 - 3t
Find the measure of the are or central angle indicated. Assume that lines which appear to be
diameters are actual diameters.
Please help!!!!!!!!
Answer:
major arc CEB = 320°
Step-by-step explanation:
arc BF = 140°
arc CE = 140°
arc CB = arc EF
arc CB + arc EF = 360-280 = 80
arc CB = 40°
major arc CEB = 360 - 40= 320°
If anyone could help also step by step please with work
9514 1404 393
Answer:
m = 1/3
Step-by-step explanation:
Step 1. Pick a line of the table to use as (x1, y1).
Step 2. Pick a different line of the table to use as (x2, y2).
Step 3. Use the slope formula:
m = (y2 -y1)/(x2 -x1)
Step 4. Simplify the result.
__
Here are these steps for this problem.
1, 2. use (x1, y1) = (-9, -5) and (x2, y2) = (-3, -3)
3. m = (-3 -(-5))/(-3 -(-9)) = 2/6
4. m = 1/3
Write the equation of the line (in slope-intercept form) that passes through the points (1, 6) and (2, 8).
Answer:
y = 2x + 4
Step-by-step explanation:
Figure out the slope.
y2 - y1 / x2 - x1 8 - 6/ 2 - 1 = 2
Find out the y-intercept. Your equation so far is y = 2x + b.
8 = 2(2) + b
8 = 4 + b
4 = b
Can someone help solve number 14 and 15 please
Answer:
14: A
15: A
Step-by-step explanation:
Find measurement of angles. Help me out pls :'
Answer:
33
Step-by-step explanation:
3x-1+x-1=134
4x-2=134
4x=136
x=34
34-1=33
Answer:
Step-by-step explanation:
3x - 1 + x - 1 = 134
4x - 2 = 134
4x = 136
x = 34
The total cost of 5 boxes of pasta is $13.00. There are 12 ounces of pasta in each box. Each box of pasta costs the same amount. What is the cost, in dollars, for 1 ounce of pasta? Round your answer to the nearest cent.
Answer:
$0.22
Step-by-step explanation:
The computation of the cost of one ounce of pasta is shown below:
Since there is a total cost of 5 pasta boxed is $13
So for one box, the cost is
= $13 ÷ 5
= $2.6
And, there is 12 pasta ounces in each box
So the cost of one ounce of pasta would be
= 1 × $2.6 ÷ 12
= $0.22
There are galon of water in a 3-gallon container. What fraction of the container is filled?
1. Write a multiplication equation and a division equation to represent the situation
Answer:
1/3 of the container is filled
Step-by-step explanation:
1 times 3 = 3 3 divided by 3 = 1
I really need help on this question, thank you!
Answer:
Your answer is D
Step-by-step explanation:
When we reflect the point which is at the coordinates (-2,4) we count how far it is from the Y line, it is 2 units away thus we must put our point on the Y line and count 2 to the other side giving us (2,4)
Hope this helps!
15 POINTS PLEASE HELP!!!
Answer:
the 2nd one i think please be right
A circular fish pond that you are designing for your local park has an area
of about 113.04 square feet. What is the approximate diameter of the
pond? *
Answer:
Step-by-step explanation:
d≈12ft
A Area
113.04
ft²
d
r
r
r
d
d
C
A
Using the formulas
A=πr2
d=2r
Solving ford
d=2A
π=2·113.04
π≈11.99696ft
Pls pls help
Show work :)
9514 1404 393
Answer:
31.243 units
Step-by-step explanation:
The mnemonic SOH CAH TOA reminds you of the relationships between sides and angles in a right triangle. Using the attached figure, it is convenient to find the length of BE as an intermediate step in the solution.
Sin = Opposite/Hypotenuse
sin(30°) = BE/100
BE = 100·sin(30°)
Then ...
Tan = Opposite/Adjacent
tan(58°) = BE/x
x = BE/tan(58°) = 100·sin(30°)/tan(58°)
x ≈ 31.243 . . . . units
_____
Comment on the figure
The intermediate problem in creating the figure was to locate point D. That was accomplished by locating point C on a line at an angle of 58° CCW from the horizontal, using point B as a center. Then D is the intersection of BC with the x-axis. BE is drawn perpendicular to the x-axis.
7. Convert the following metric units
of weight.
a. 40 centigrams to grams
b. 53 milligrams to grams
C. 0.54 grams to decigrams
d. 2.3 grams to milligrams
What is 3.457 rounded to the nearest tenth
PLEASE HELP ME I WILL GIVE YOU BRAINLIEST!
Answer: D
Step-by-step explanation:
C=πd=π·22≈69.11504m :)
Answer:
C=πd=π·22≈69.11504m
Step-by-step explanation:
A company makes muesli which contains nuts and sultanas.
They counted the number of nuts in 50 individual serving packets.
They drew this table.
Number of nuts
Number of
Midpoint (x)
packets (0)
fx
4-6
5
3
15
7-9
8
9
72
10 - 12
11
12
132
13 - 15
14
17
238
16 - 18
17
9
153
50
610
a) Complete the table.
b) Calculate an estimate for the mean.
A company makes muesli which contains nuts and sultanas.
They counted the number of nuts in 50 individual serving packets.
They drew a table.
Number Midpoint Number of
of nuts (x) packets (f) f.x
4 - 6 5 3 15
7-9 8 9
10 - 12 11 12
13 - 15 14 17
16 - 18 17 9
50
To Find :
complete the table
calculate and estimate for the mean
The estimate for the mean number of nuts in a serving packet of muesli is approximately 12.2 nuts.
a) To complete the table, we need to find the values of "fx" (frequency multiplied by the midpoint) for each class interval. Here's the updated table:
Number of Nuts Number of Packets Midpoint (x) fx
4-6 5 5 5 * 3 = 15
7-9 8 8 8 * 9 = 72
10 - 12 11 11 11 * 12 = 132
13 - 15 14 14 14 * 17 = 238
16 - 18 17 17 17 * 9 = 153
Total 50 610
b) To calculate an estimate for the mean, we use the formula:
Mean = Sum of (fx) / Total Number of Packets
Mean = 610 / 50
Mean ≈ 12.2
Therefore, the estimate for the mean number of nuts in a serving packet of muesli is approximately 12.2 nuts.
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What is the product of (3x - 4) and (3x - 4)
Answer:
[tex] {9x}^{2} - 24x + 6[/tex]
Step-by-step explanation:
i explain in the photo :D
what fraction equals 1/8 + 1/8 + 1/8 + 1/8 + 1/8?
Answer:
Pretty sure it's 5/8
Step-by-step explanation:
The value of the given expression is 5/8.
The given expression is 1/8 + 1/8 + 1/8 + 1/8 + 1/8.
How to add fractions?To add fractions there are three simple steps:
Step 1: Make sure the bottom numbers (the denominators) are the same.
Step 2: Add the top numbers (the numerators), and put that answer over the denominator.
Step 3: Simplify the fraction (if possible).
Now, 1/8 + 1/8 + 1/8 + 1/8 + 1/8=5/8
Therefore, the value of the given expression is 5/8.
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Gabe is making a fruit punch for a party. He starts with some apple juice and adds 2 12 cups of soda and 134 cups of orange juice. He ends up with 612 cups of the fruit punch. How many cups of apple juice are in the fruit punch?
A) 214
B) 3 56
C) 4 14
D) 10 34
The table represents temperature for 9 days in February. what is the average temperature?
Answer:
42
Step-by-step explanation:
(38+45+28+50+52+48+60+30+27)/9
=42
Polynomials math question
Answer:
binomial
Step-by-step explanation:
2 terms
Answer:
binomial
Step-by-step explanation:
2 terms (-2.5x^2y) and (-4). when different variables are being multiplied in that form, they are considered as 1 term.
its coordinate planes
Answer:
V
Step-by-step explanation: