3 years ago

2. Which of the following is(are) the solution(s) to 15x+2 - 8 ?

Mathematics

1 answer:

mixer [17]3 years ago

8 0

Answer:

plz provide us with options

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Kitara has 100 quarters and dimes. Their total value is $19. How many of each coin does Kitara have?

Sedbober [7]

Q + d = 100 so q = 100 - d
0.25q + 0.10d = 19

substitute q = 100 - d into 0.25q + 0.10d = 19

0.25q + 0.10d = 19
0.25(100 - d) + 0.10d = 19
25 - 0.25d + 0.10d = 19
-0.15d = -6
d = 40

q = 100 - 40 = 60

answer
Kitara has 60 quarters and 40 dimes

4 0

3 years ago

Solve. d + 8 < 35 <br> d < –27 <br> d < 27 <br> d < –43 <br> d < 43

Sindrei [870]

The answer is d lol have a good day

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The sides of the rectangle are in the ratio of 4:7. If its length is 31.5 in., find the width, the perimeter, and the area of th

AveGali [126]

Let $\ell$ the length and $w$ the width. By the ratio of the sides:

$\dfrac{w}{\ell}=\dfrac{4}{7}\Longrightarrow \dfrac{w}{31.5}=\dfrac{4}{7}\Longrightarrow w=\dfrac{4\cdot31.5}{7}\Longrightarrow \boxed{w=18~in.}$

Now, we'll find the perimeter p. We'll use the formula below:

$p=2(\ell+w)\\\\
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The area of a rectangle is $S=w\cdot\ell$ . Then:

$S=w\cdot\ell\\\\
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If you owe your friend $3 and you have $15, which expression would help you find out how much money you would have left?

gizmo_the_mogwai [7]

The answer is B because your subtracting it

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Fitness instructor recommend a workout of both cardio and strength at a ratio of 7:4 minutes how many minutes of cardio would be

Nadusha1986 [10]

4x = 20 min
7x = y min

x = 20 / 4
x = 5 min

7*5 = 35 min