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Reil [10]
3 years ago
7

A family will travel 225 miles

Mathematics
1 answer:
Gennadij [26K]3 years ago
4 0

Answer:

t ≤ 225r

Step-by-step explanation:

Distance = 225 miles

Time taken = t

Average speed = r miles per hour

Recall :

Speed = distance / time

Time, = distance / speed

t = 225 miles / r

All possible values of t :

t ≤ 225r

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Your weekly salary is $150. you also earn $20 commission for each cell phone that you sell. write an expression to represent the
Vlad1618 [11]
150 + 20x, where x is the number of cellphones sold
6 0
3 years ago
on Monday it rained 1 3/4 of an inch and on Tuesday it rained 2 2/3 of an inch. how many inches did it rain altogether?​
iogann1982 [59]

Answer:

4 5/12

Step-by-step explanation:

Convert to mixed fraction 7/4 + 8/3

Find common denominator, 12

21/12 + 32/12

add numerators  (21+32)/12 = 53/12

reduce fraction 4 5/12

8 0
3 years ago
A cereal box has a height of 32 cm. The base has 160 square cm what is the volume in cubic cm of the box
ruslelena [56]
Hello There!

All you really need to do is multiply 160 with 32.

160 × 32 ≈ 5120 

5120 cm

Hope this helped!

7 0
3 years ago
Read 2 more answers
5q + 3 = 3h solving for q
lapo4ka [179]

Answer:

Im not sure tbh, but go to this website called Symbolab, and just type it in and it gives you a step by step process om how to solve it! ( :

Step-by-step explanation:

3 0
3 years ago
Miguel bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $450 less than the desktop. He p
Stolb23 [73]

Answer

Find out the how much did each computer cost before finance charges .

To proof

Let us assume that the price of the desktop computer be x .

Let us assume that the price of the laptop computer be y .

As given

the laptop cost $450 less than the desktop.

than the equation is written

y = x - 450

As given

He paid for the computers using two different financing plans.

For the desktop the interest rate was 7% per year,

the laptop it was 5.5% per year.

The total finance charges for one year were $279.

7 % is written in the decimal form

=\frac{7}{100}

= 0.07

5.5 % is written in the decimalform

= \frac{5.5}{100}

=0.055

than the equation becomes

0.07x + 0.055y = 279

simplify the above

we get

70x + 55y = 279000

put y = x - 450 in the equation

we get

70x + 55 ( x - 450 ) = 279000

70x + 55x - 24750 = 279000

125x = 303750

x = \frac{3037550}{125}

x = $ 2430

put in the  y = x - 450

y = 2430- 450

y =$ 1980

Therefore the desktop cost $ 2430 before finance charge.

the laptop cost $ 1980 before finance charge.

Hence proved


3 0
3 years ago
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