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3 years ago

Evaluate the expression 3(x - 1)' + 2x - 7 for = 3,

Mathematics

1 answer:

Marizza181 [45]3 years ago

4 0

Answer and step-by-step explanation:

Break the bracket out would be the first step to evaluate this expression:

3(x-1)

= 3x - 3

Hope this helped :3

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Work out the area of a rectangle with base, b = 20mm and perimeter, P = 60mm.

skelet666 [1.2K]

base+perimeter

20mm+60mm

=80mm

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3 years ago

While shopping, Dawn finds a backpack that she likes on the sale rack. Its original price is $60,

Nadya [2.5K]

No. Because 33 $ is the money deducted from the 60 $. Dawn bought everything for less than 60 $.

So, if Dawn purchases everything on the rack with a 30% discount and 15% coupon the total will indeed make 45%.

We have to take 100% - 45%= 55% to know the reduction number. Let's proceed to the calculations now.

100%= 60 $

1%=60/100

55%= 60/100 × 55 = 33 $

Now NOTE; 33 $ is the money reduced from the 60 $. So, logically, 33 $ isn't the amount which Dawn purchased the whole rack. 

To find the amount at which she purchased everything, we need to do,

60 $ - 33 $ = 27 $

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3 years ago

What is the y-intercept and x-intercept of 2x + y = 10x - 1

Sauron [17]

Answer:

Wait I only see the part where it says “what is the y-intercept and x-intercept of” but I don’t see an equation :/

Step-by-step explanation:

6 0

3 years ago

tDan paid the grocery bill of $76.45 with $100. Mistakenly the cashier gave Dan only $13.55 in change. How much more does the ca

adell [148]

The answer would be 10$

7 0

3 years ago

Your Co. collects 50% of its sales in the month of the sales, 30% of the follow month, and 20% the second month after the sale.

Crank

Answer:

March 52
April 41

Step-by-step explanation:

In March, Your Co. will collect 20% of January's sales, 30% of February's sales, and 50% of March's sales:

.20×50 +.30×40 +.50×60 = 10 +12 +30 = 52

Similarly, in April, collections will be ...

.20×40 + .30×60 + .50×30 = 8 +18 +15 = 41

3 0

3 years ago

Read 2 more answers