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3 years ago

Please help will mark brainy A) 9¢/qt B) $91.43¢/qt C) 64¢/qt D) 0.64¢/qt

Mathematics

2 answers:

alex41 [277]3 years ago

5 0

answer:

b. $91.43/qt

step-by-step explanation:

it's a lot of work

andre [41]3 years ago

4 0

I am pretty sure it’s B

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rjkz [21]

Answer:

y = 2x-7

Step-by-step explanation:

÷ the whole equation by 3

take the y to the right hand side and the 7 to the left

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3 years ago

Question Progress Homework Progres Solve the inequality 5x – 7 > 4x + 8

Elenna [48]

Answer:

x > 15

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS
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Step-by-step explanation:

Step 1: Define inequality

5x - 7 > 4x + 8

Step 2: Solve for x

Subtract 4x on both sides: x - 7 > 8
Add 7 on both sides: x > 15

Here we see that any value x that is greater than 15 would work as a solution to this inequality.

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3 years ago

A quantity with an initial value of 4000 grows exponentially at a rate of 0.05% every 5 decades. What is the value of the quanti

icang [17]

The value of the quantity after 1 year, to the nearest hundredth is 4000.00

<h3>The exponential form of an equation</h3>

The standard exponential equation is eexpressed as:

$P(t)=P_0e^{kt}$

Given the following parameters

$P_0=4000\\r =0.0005\\t = \frac{1}{50} =0.02 (yearly)$

Substitute into the formula to have:

$P(t)=4000e^{0.0005(0.02)}\\P(1)=4000e^{0.00001}\\P(1)=4000$

Hence the value of the quantity after 1 year, to the nearest hundredth is 4000.00

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3 years ago

Before the industrial revolution in 1800 the concentration of carbon in Earth’s atmo- sphere was 280 ppm. The concentration in 2

slega [8]

Answer: There is increase of 4.255 in the amount of carbon in the atmosphere.

Step-by-step explanation:

Since we have given that

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We need to find the percentage increase in the amount of carbon in the atmosphere.

So, Difference = 399-280 = 119 ppm

so, percentage increase in the amount of carbon is given by

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Hence, there is increase of 4.255 in the amount of carbon in the atmosphere.

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3 years ago

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NNADVOKAT [17]

Answer:

Step-by-step explanation:

The two angles are formed from 2 intersecting lines. The angles are called vertically opposite angles. They are equal

4x + 21 = 85 Subtract 21

4x = 85 - 21 Combine

4x = 64 Divide by 4

x = 64/4

x = 16

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3 years ago