Answer:
a = 4, b = 8
Step-by-step explanation:
Rewrite 5b=6a+16 and 9a=7b-20 vertically:
5b=6a+16
9a=7b-20
Let's use substitution. Solve the first equation for b:
6a + 16
b = --------------
5
Substitute this result into the second equation:
9a = 7(b) + 16, or
6a + 16
9a = 7*-------------- - 20
5
Eliminate the fraction by multiplying all three terms by 5:
45a = 7(6a + 16) - 100, or
3a = 112 - 100, or:
3a = 12, which leads to a = 4.
Find b by subbing 4 for a in either of the given equations:
5b = 6(4) + 16, or
5b = 40, leading to b = 8
The solution is a = 4, b = 8
How is a line segment diffrent from a line?
How is a line segment diffrent from a ray?
Answer:
A line segment has two endpoints. A ray has one endpoint. A line has zero endpoints.
Step-by-step explanation:
There is two questions please help me
Step-by-step explanation:Answer:
As it is equilateral triangle, l₁ = l₂ = b = 6 cm
Total surface area of triangular prism= (l₁ +l₂ + b)* height
= ( 6 + 6 + 6) * 15
= 18 * 15
= 270 cm²
2) length = l = 8.2 in
Width = w = 3.4 in
height = h = 2
Total surface area of rectangular prism = 2*(lw + wh + hl)
= 2*(8.2*3.4 + 3.4*2 + 2*8.2)
=2 *( 27.88 + 6.8 + 16.4)
= 2 * 51.08
= 102.16
= 102 in²
pls help and explain.
Answer:
b,d, and e
Step-by-step explanation:
because if you think about it, it can only hold 2:3 as a ratio. so if you do the first one as 2 then the second on would have to be 1 greater than the first number.
Answer:
a) adding two circles on the left and a square on the right.
Step-by-step explanation:
on the right, there is a square and a triangle
on the left, there are two circles and a triangle
both sides have a triangle so you don't need to worry about that
to balance the hanger, add what is missing:
the left is missing two circles
the right is missing a square
therefore, add 2 cicles to the left and a square to the right
PLZ PLZ HELPP!!!!!! WILL GIVE BRAINLIEST
Which is the better deal for an iced coffee drink? 16 ounces for $2.19, 24 ounces for $2.99 or 32 ounces for $4.29.
Explain fully and persuasively. Make your thinking visible!
Answer:
24 ounces for $2.99
Step-by-step explanation:
Because that would make the cost into 3 dollars, and It would be cheaper to do it that way. The reason I said this is because I remember I had to pay for something that cost 3 dollars, and it was a drink for 24 ounces, so yes, and that is why I think 24 ounces for $2.99.
Answer:
look at the picture i sent please
PLEASE HELP ME!!!!! THIS IS WORTH 15 POINTS SO PLEASE ANSWER CORRECTLY!!!!!!!! THERE'S A PICTURE OF THE QUESTION!!!!!!!!!!! The problem is volume by the way.
Answer:
14 7/27 in ^3
Step-by-step explanation:
V = l*w*h
V = 11/3 * 5/3*7/3
V =385/27 in ^3
To change the improper fraction to a mixed number
27 goes into 385 14 times with 7 left over
14 7/27 in^3
Help! Will give brainliest to the best answer, questions in picture!
Answer:
X x 2 ÷ 17
Step-by-step explanation:
X is always considered as our variable.
Using the key words quotient and twice and the word "and" can help you.
A simple interest loan of
$4,000 was repaid at the end
of 3 years with a check for
$4,972. What annual rate of
interest was charged?
GIVING THANKS AND BRAINLIEST FOR BEST ANSWER <3
::::::::
Answer:
B
Step-by-step explanation:
look closely at the graph pretend the first side is looking through a mirror.
Please help me
Xxxxxxxxx
NEED HELP PLEASE!!
Determine whether the function shown in the graph is even or odd.
The graph will be below the answers
Answers:
The function is even because it is symmetric with respect to the y-axis
The function is odd because it is symmetric with respect to the y-axis.
The function is even because it is symmetric with respect to the origin.
The function is odd because it is symmetric with respect to the origin.
WILL GIVE BRAINLIEST FOR THE CORRECT ANSWER!!!
Answer:
the function is odd because it is not symmetric with respect to the origin
Answer:
The function is odd because it is symmetric with respect to the origin.
Step-by-step explanation:
im just built different
Evaluate the expression for the given value of x
0.3x + 66 for x=-2
Answer:
66.6
Step-by-step explanation:
Because 0.3 x 2 = 0.6 and 2 + 66 = 66.6
So yea
PLZ HELP RN I WILL GIVE BRAINLIEST TO BEST ANSWER AND NO LINKS!!
Answer:
c they are equil
Step-by-step explanation:
Answer:
B is answer -\_( 0-0)_/-
Step-by-step explanation:
Deandre has a bookcase with k shelves. There are 13 books on each shelf. Using k , write an expression for the total number of books.
Answer:
13k
or
13 x k
Step-by-step explanation:
If you were solving for y what would the first step? -5=y-7/9
Answer:
-38/9
Step-by-step explanation:
-5=x-7/9
-5+(7/9)=x-(7/9)+(7/9)
x=-5+(-7/9)
x=(-38/9)
6th Grade Math
Which expression represents the area of triangle ABC in square meters?
A. 1/2 x 14 x 57
B. 1/2 x 14 x 64
C. 1/2 x 24 x 40
D. 1/2 x 24 x 57
Answer:
A. 1/2 x 14 x 57
Step-by-step explanation:
The formula for the area of a triangle is base x height x 1/2
To calculate the base you would need to add the two numbers on the bottom of the triangle: 20 + 37 = 57
The photo shows that the height is 14 so it would be
1/2 x 14 x 57
Formula of area of triangle-1/2
The base is 20+37 =57
so the answer is 1/2*57*14
Laura has 8 marbles. Dennis gives laura 3 more. how many marbles does Laura have in all?
-10=5 - 3s
Can you help me
Answer:
s=5
Step-by-step explanation:
-10=5-3s
+3s on both sides
-10+3s=5
+10 on both sides
3s=15
divide by three on both sides
s=5
Hope this helps =]
Answer:
-10 = 2
This is the answer to your equation if you're wondering I didn't know what else to do but to evaluate it for you.
can someone please help me find the rate of change in this function?
(11.0, 11.0)
The answer is not zero
Answer:
If the answer isn't 0 or .0 I'm going to need some answer choices.
Step-by-step explanation:
Find an equivalent ratio in simplest terms:
56:44
Answer:
14 : 11 is the answer to ur question
WILL MARK BRAINLIESTTT
Maori created this shape out of construction paper using a ruler and scissors. She made sure that all of her angles were right angles.
What is the area of Maori's shape?
A) 36 cm2
B) 48 cm2
C) 90 cm2
D) 102 cm2
Find the volume of this complex figure please TwT
Answer:
456in^3
Step-by-step explanation:
Make two separate figures then find the volume of both and add them together.
UM CAN SOMEONE HELP ME
Answer:
Use one of those mean median and mode calculators
Step-by-step explanation:
Answer:
too lazy rn, add every thing up. then divide by how many numbers u have
Step-by-step explanation:
:)
Evaluate the expression for the given value of x
5/6x - 45 for x = 54
Answer:
The answer is 0
Step-by-step explanation:
5/6 x 54 = 45
45 - 45 = 0
So yea the answer...
what is –4(2x + 6) – 9?
Please help
two cities are 120 miles from each other how far apart would the cities be on a map that has a scale of 0.6 inches 7.5 miles
Answer:
9.6
Step-by-step explanation:
so 120 divided by 7.5=16
16x0.6= 9.6 inches
Answer:
9.6 inches
Step-by-step explanation:
divide 120 by 7.5=16
So, 16x0.6= 9.6 inches
mark me brainlst!
Which word best describes the degree of overlap between the two data sets?
moderate
high
low
none
explain how to read a tally chart
Answer:
one vertical line is made for the first four numbers and the fifth number is represented by a diagonal line across the other four lines .
Step-by-step explanation:
For the number 5, draw four vertical lines (||||) with a diagonal (\) line through it.
l = 1
ll = 2
lll = 3
llll = 4
卌 = 5
True or False: A triangle can be constructed using segments that have a length of 8 ft, 20 ft, and 13 ft.
Answer:
False
Step-by-step
The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.
Hoped I helped. Comment if I am right or not just let me know in the comments.
Please help I will give brainly
Answer:
A) 1/2 pound
Step-by-step explanation:
The length of the hypotenuse is ______