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wolverine [178]

2 years ago

13

The sum of nine times a number and five is one hundred eighty-five

2 answers:

dangina [55]2 years ago

6 0

Answer:

9x4+5= 185

Step-by-step explanation:

tangare [24]2 years ago

4 0

Answer:

9 x (x +5) = 185

Step-by-step explanation:

I'm pretty sure this is how you write it

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Rewrite 2/20 : 1/40 as a unit rate

Usimov [2.4K]

Answer:

yes

Step-by-step explanation:

3 0

1 year ago

A 30-inch board is to be cut into three pieces so that the second piece is 4 times as long as the first piece and the third pie

Arte-miy333 [17]

Answer:

Step-by-step explanation:

Length of:

First piece = x

Second piece = 4x

Third piece = 5x

Equation: 30 = 4x + 5x + x

Solving the Equation:

10x = 30

x = 3

Lengths of:

First piece = 3 inches

Second piece = 12 inches

Third piece = 15 inches

6 0

1 year ago

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adelina 88 [10]

.32 is the answer to this question

7 0

2 years ago

Help me, please! For 20 pts

emmasim [6.3K]

Answer:

First box ⇒ 3.6 x 10^-1

Second box ⇒ 3.1 x 10^6

Third box ⇒ 5.3 x 10^-6

Fourth box ⇒ 4.2 x 10^-1

Step-by-step explanation:

I used a calculator and solved it :)

6 0

1 year ago

Read 2 more answers

The monthly cost of driving a car depends on the number of miles driven. Lynn found that in May it cost her $420 to drive 500 mi

djyliett [7]

Answer:

$C(d) = \frac{1}{5}d + 320$

Step-by-step explanation:

Given

$d \to miles$

$C \to cost$

So:

$(d_1,C_1) = (500,420)$ --- May

$(d_2,C_2) = (620,444)$ --- June

Required

Express as a function

Start by calculating the slope (m)

$m = \frac{\triangle C}{\triangle d}$

$m = \frac{444-420}{620-500}$

$m = \frac{24}{120}$

Simplify

$m = \frac{1}{5}$

The equation is:

$C(d) = m(d - d_1) +C_1$

$C(d) = \frac{1}{5}(d - 500) +420$

$C(d) = \frac{1}{5}d - 100 +420$

Take LCM

$C(d) = \frac{1}{5}d + 320$

6 0

2 years ago