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2 years ago

Solve for a. 4a+5=2+3.5a

Mathematics

1 answer:

Mazyrski [523]2 years ago

4 0

Answer:

a =-6

Step-by-step explanation:

4a+5=2+3.5a

Subtract 3.5a from each side

4a-3.5a+5=2+3.5a-3.5a

.5a +5 = 2

Subtract 5 from each side

.5a +5-5 = 2-5

.5a = -3

Divide each side by .5

.5a/.5 = -3/.5

a =-6

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The average number of customers per day increased 25 percent during the sale. If the average number of customers per day before

Rasek [7]

Answer:

The average number of customers per day during the sale was 150.

Step-by-step explanation:

This question can be solved using a rule of three.

Before the sale, the average number of customers per day was 120, which is 100% = 1.

Now, there are x customers, and since it is an increase of 25%, it is 100+25 = 125% = 1.25. So

120 - 1

x - 1.25

x = 1.25*120 = 150

The average number of customers per day during the sale was 150.

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2 years ago

The speedometer in Kevin's car reads in both miles/hour and kilometers/hour. What information is needed to convert between these

Akimi4 [234]

Answer:

a) the number of miles in 1 kilometer

Step-by-step explanation:

The car converts from miles/hour to kilometers/hour, if we see the time measurement (hours) it stays the same in both units.

So to make the conversion it is enough to know how many miles are in one kilometer.

For example, lets convert 10miles/hour to kilometers/hour.

there are 0.621371 miles in 1 kilometer, so if we divide 10miles/hour by 0.621371 we get kilometers/hour units:

$\frac{10miles}{hour} (\frac{1kilometer}{0.621371miles} )=16.0934\frac{kilometers}{hour}$

Thus to make the conversion between the two units is needed the number of miles in 1 kilometer.

5 0

2 years ago

First grade math its blank minus 1 =10-3 -1=10-3

marissa [1.9K]

___-1=10-3
x-1=10-3
x-1=7
x=8
therefore the blank is 8

7 0

2 years ago

Read 2 more answers

Can someone pls help me? Determine the measures of the unknown angles in the figure below.

IceJOKER [234]

Answer:

x= 127

w = 53

Step-by-step explanation:

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2 years ago

What is the slope of the line with points A and B?

marshall27 [118]

Answer:

-1

Step-by-step explanation:

A = (0,0)

B = (1,-1)

Slope = (-1-0)/(1-0) = -1/1 = -1

3 0

2 years ago