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never [62]
3 years ago
6

Create a linear system to model this situation. Then use substitution to solve the linear system to solve

Mathematics
1 answer:
PtichkaEL [24]3 years ago
3 0

Answer:

dimes --- x

quarters ---- 28-x

10x + 25(28-x) = 430

Step-by-step explanation:

not sure po

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What is the amount of material required to creat a Toblerone box? The triangular base is equilateral.
Lubov Fominskaja [6]

Answer:

21 x 3.1 / 2 = 32.55

Step-by-step explanation:

8 0
3 years ago
What is the value of x?<br> 21<br> 24<br> 32<br> 44
VMariaS [17]

Answer:

x = 21

Step-by-step explanation:

Because GJ is a diameter, the angle K is a right angle (90 degrees).

Thus, 4x + 6 = 90, and 4x = 84.  Thus, x = 21

7 0
3 years ago
I'm confused. Can someone help me out with this problem step-by-step using the P = 2L + 2W formula?
german

We can't use P = 2L + 2W because  the sides have different lengths.

P = a + b + c + d

a = x

b = 2x

c = 2x - 2

d = x + 5

P = x + 2x + (2x - 2) + (x + 5)

P = <u>x + 2x + 2x</u> - 2 <u>+ x</u> + 5

P = 6x + 3

if x = 4:

P = 6 · 4 + 3

P = 24 + 3

P = 27

3 0
4 years ago
9/15+2/5 need help adding fractions
GenaCL600 [577]

Answer:

15/15 aka 1

Step-by-step explanation:

9/15 and 2/5

keep the 9/15 and then denominator the bottom number has to be the same as the first one so multiply 5 times 3 to get 15 whatever you do to the bottom you have to do to the top so 2 times 3 equals 6.

9/15 and 6/15

9+6 equals 15

15/15 which then equals 1

4 0
3 years ago
Read 2 more answers
Please <br> Solve for the value of k.
alukav5142 [94]

Answer:

k = 13

Step-by-step explanation:

The sum of the angles is 180 since they form a straight line

4k-7 + 90 + 3k+6 = 180

Combine like terms

7k+89=180

Subtract 89 from each side

7k+89-89 = 180-89

7k =91

Divide each side by 7

7k/7 = 91/7

k = 13

8 0
3 years ago
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