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Mathematics

1 answer:

alukav5142 [94]2 years ago

4 0

Answer:

15 times per seconds

Step-by-step explanation:

basta 15 times per seconds

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Y/7 - 4 = 5, solve for y, thanks!

barxatty [35]

The answer is Y = 63

Here's how I got my answer:

Step 1: Add 4 to both sides. Which leaves us with $Y/7 = 5 + 4$

Step 2: Simplify $5 + 4$ to 9. Which leaves us with $Y/7 = 9$

Step 3: Multiply both sides by 7. Which leaves us with, your answer, Y = 63

6 0

2 years ago

Read 2 more answers

A composite figure is divided into two congruent trapezoids, each with a height of 4 cm.

lidiya [134]

Answer:

The area of this composite figure is $64\ cm^{2}$

Step-by-step explanation:

we know that

If the composite figure is divided into two congruent trapezoids, then the area of the composite figure is equal to the area of one trapezoid multiplied by two

The area of the composite figure is

$A=2[\frac{1}{2}(b1+b2)h]$

$A=(b1+b2)h$

substitute the values

$A=(6+10)4$

$A=64\ cm^{2}$

4 0

2 years ago

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Percent increase and decrease. Original number:45 New number: 18

andre [41]

Answer:

60% decrease

Step-by-step explanation:

To find the percentage increase/ decrease construct a fraction with numerator showing increase/ decrease and denominator with original number then multiply the fraction by 100%

here the decrease = 45 - 18 = 27

percent decrease = $\frac{decrease}{original}$ × 100%