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svetoff [14.1K]
3 years ago
7

Need help on this please

Mathematics
1 answer:
iren [92.7K]3 years ago
3 0

Answer:

do you still need this answered?

Step-by-step explanation:

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Mary is buying several items that cost $128.25 total. She is using a store coupon for 35% off her purchases, She has to pay 4% s
nikklg [1K]

Answer:

she would have to pay about $88.49

Step-by-step explanation:

128.25x.35=44.8875

128.25-44.8875=83.3625

128.25x.04=5.13

83.3625+5.13=88.4925

4 0
3 years ago
Dwayne wrote a two-digit number. He multiplied it by 3, added 18, and divided by 8. His final answer was 9. What number did Duwa
Karolina [17]
Question 1:
(x*3)+18/8=9    is the equation
(x*3)+18=72     multiply by 8
(x*3)=54           Subtract 18
x=18                 Divide by 3

The two digit number is 18

Question 2:
x*4=43             Divide by 4
x=10.75           10 3/4
10 3/4+3 3/4     Solve
14 1/2

Pablo is 14 1/2 years old
8 0
4 years ago
The product of y and 2
Alex787 [66]

Answer:

2y

From: iOE your friend

*Be awesome Be you*

3 0
3 years ago
What is the scale factor of ABC to DEF?
jasenka [17]

Answer:

The scale factor is 1

Step-by-step explanation:

Both of the triangles are the same size so its a scale factor of 1. The 2 triangles are 5/5 for all of the sidesand 5/5 = 1.

6 0
3 years ago
Find the 4th term of the expansion of (2a - b)^7.
ankoles [38]

Answer:

-560a^4b^3

Step-by-step explanation:

Given:

(2a - b)^7

By using Binomial theorem:

128a^7 - 448a^6b + 672a^5b^2 - 560a^4b^3 + 280a^3b^4 - 84a^2b^5 + 14ab^6-b^7

Here the fourth term is -560a^4b^3 !

4 0
4 years ago
Read 2 more answers
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