4 years ago

Someone please help with this

Mathematics

1 answer:

netineya [11]4 years ago

7 0

This is the answer for the first and second question. I hope this helps :)

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What is 5/8x + 1/5x = 99

Pani-rosa [81]

x = 120

Too long to exaplin.

Just trust me

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4 years ago

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Solve the following exponential equations.<br> 10^(3x−5) = 7^x

zalisa [80]

Answer:

x = 2.3202

Step-by-step explanation:

Given equation:

$10^{(3x-5)} = 7^x$

on taking log both sides, we get

$\log(10^{(3x-5))} =\log(7^x)$

now,

using the property of log function

log(aᵇ) = b × log(a)

therefore,

we get

(3x-5)log(10) = xlog(7)

now,

log(10) = 1

and

log(7) = 0.84509

thus,

( 3x - 5 ) × 1 = 0.84509x

3x - 0.84509x - 5 = 0

2.15491x = 5

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3 years ago

To the nearest tenth, what is the area of a circle whose diameter is 9 feet? Use 3.14 for π . Enter your answer in the box.

Rus_ich [418]

A=3.14*4.5^2=63.585=63.6

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3 years ago

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Judy ran the distance s. Monday 0.35, Wednesday 0.2 and Friday 0.25. write the total distance in miles as a fraction in simplest

Alexandra [31]

Answer:

4/5

Step-by-step explanation:

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3 years ago

How do you do: -6(6a-5)=-2(8-5a)

devlian [24]

Answer:

a = 1

Step-by-step explanation:

1. distribute the -6 on the left into the parentheses. you should get -36a + 30.

2. on the side right of the =, distribute the -2 to get -16 + 10a.

now it should look like -36a + 30 = -16 + 10a.

3. move the terms over to isolate the a value. subtract 30 to the right side to get -46 (-36a=-46+10a)

4. move the 10a on the right to the left by subtracting it to the other side.

(-46a=-46)

5.divide by -46 to get a=1

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3 years ago