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3 years ago

Heather's grandmother is 5 times as old as Heather. If her grandmother is 5 points

Mathematics

1 answer:

Sloan [31]3 years ago

5 0

85 \5 =17 so heather is 17

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The difference of two complementary angles is 20. Find the measure of each angle

stich3 [128]

Answer:

35° , 55°

Step-by-step explanation:

Let one angle be x.

It's complementary angle is = (90 - x)°

According to the question ,

$x - (90 - x) = 20$

$=> x - 90 + x = 20$

$=> 2x = 90 - 20 = 70$

$=> x = \frac{70}{2} = 35$

4 0

3 years ago

What is equivalent to -2(x5)

anzhelika [568]

-10x is the final answer
Hope this helps

3 0

3 years ago

(3+5^2) dividend by 4+19

Agata [3.3K]

Answer:

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

What is the solution of the system? y = 13x - 1 ; y = 9x + 4

Temka [501]

Answer:

$(\frac{5}{4},\frac{61}{4}$ )

Step-by-step explanation:

This system we can solve by substitution method :

y=13x-1

y=9x+4

_______

y=13x-1

13x-1=9x+4 (instead y in second equation we use 13x-1 and first rewrite)

_______

y=13x-1

13x-9x=4+1 (subtract 9x and add 1 for each side)

______

y=13x-1

4x=5 (divide by 4)

_____

y=13x-1

$x=\frac{5}{4}$ (instead x in first eq we write 5/4)

______

$y=13*\frac{5}{4} -1=\frac{65-4}{4}=\frac{61}{4}$

6 0

3 years ago

A study of the annual population of gray squirrels in a Texas state park shows the population, S(t), can be represented by the f

Anastasy [175]

The growth rate of the given function is A) 1

Step-by-step explanation:

Step 1; To calculate the rate we need to see the difference between values at different periods of time. We need to calculate the population at different times.

For t = 1 years, S(t) = 273(1.073)t = 273 × 1.073 × 1 = 292.929,

For t = 2 years, S(t) = 273(1.073)t = 273 × 1.073 × 2 = 585.858,

For t = 2 years, S(t) = 273(1.073)t = 273 × 1.073 × 1 = 878.787.

Step 2; To calculate the growth rate, we divide the difference in the values of the present year and the past year by the value in the past year.

Growth rate between t = 1 and t = 2, Growth rate = S(t=2) - S(t=1) / S(t=1)

= 585.858 - 292.929 / 292.929 = 1.

Growth rate between t = 2 and t = 3, Growth rate = S(t=3) - S(t=2) / S(t=2)

= 878.787 - 585.858 / 585.858 = 1.

So the growth rate is A) 1.

4 0

4 years ago