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3 years ago

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pedro took a total of 40 quizzes over the course of 5 weeks. how many weeks of school will pedro have to attend thsi quarter bef

ore he will have taken a total of 48 quizzes? solve using unit rates

1 answer:

Whitepunk [10]3 years ago

6 0

Answer:

6 weeks

Step-by-step explanation:

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3 years ago

What is the inverse of the function f(x) = 2x – 10?

strojnjashka [21]

Answer:

see explanation

Step-by-step explanation:

let y = f(x) then rearrange making x the subject

y = 2x - 10 ( add 10 to both sides )

y + 10 = 2x ( divide both sides by 2 )

$\frac{y+10}{2}$ = x

Change y back into terms of x

$f^{-1}$ (x) = $\frac{x+10}{2}$

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3 years ago

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3 years ago

Read 2 more answers

Select the multiplication sentence that applies the associative property of multiplication to the example. Example: 6 × (4 × 2)

Sliva [168]

answer : D

A. (6 × 7) + 6 = 48

Associative property of multiplication . Here we have +6 . there is a + sign inbetween. so it does not comes under Associative property of multiplication

B. 6 × (4 + 2) = 36

Here we have 4 +2 . there is a + sign inbetween. so it does not comes under Associative property of multiplication

C. (6 + 4) × 2 = 20

Here we have 6 + 4 . there is a + sign inbetween. so it does not comes under Associative property of multiplication

D. (6 × 4) × 2 = 48

Here we have 6 times 4 times 2. so it comes under Associative property of multiplication

4 0

4 years ago

I Need some help on this assignment Also the second half to the problem how much will be spent on the job from the 10 to 20th da

Alona [7]

Explanation

$f(x)=4.1x+1.9$

where x is the number of days since the start of the job

and f(x) is the rate of change

Step 1

a)find the total expenditure if the job takes 12 days

so, as x represents the number of days, just replace and calculate

let x= 12

$\begin{gathered} f(x)=4.1x+1.9 \\ f(12)=4.1(12)+1.9 \\ f(12)=49.2+1.9 \\ f(12)=51.1 \end{gathered}$

so

a) 51.1

Step 2

now, let's find the total spent on the job from the 10 to 20th day

a) find the x value ( number of days since the job started)

x= 20 days-10dys= 10

so

x= 10

8 0

1 year ago