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wel
4 years ago
13

Estimate the value of the expression by rounding each number to the given place value. 68 – 29; tens A. 30 B. 35 C. 40 D. 50

Mathematics
1 answer:
Leni [432]4 years ago
6 0
68 is rounded to 70. 29 is rounded to 30. This leaves you with 70 - 30, which equals 40. Which is letter D. 
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Estimate the amount of the tip by rounding the bill to the nearest dollar before calculating.
hram777 [196]

Answer:

36.04

The amount of the tip is approximately $

$7.00

O $7.20

0 $7.25

$7.50

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Y=5x+2 <br> 4x-y=0<br> is (2,12) a solution of the system?
quester [9]

Answer:

No

Step-by-step explanation:

For a point to be a solution of a system of equations, it has to work for both equations in said system. For this particular point, it doesn't fit into both.

12=5(2)+2

12=10+2

12=12

4(2)-12=0

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5 0
4 years ago
(7q+7)+(9q+1)<br> please <br> help
BigorU [14]

Answer:

16q + 8

Step-by-step explanation:

(7q+7)+(9q+1)

7q + 7 + 9q + 1

16q + 8

8 0
4 years ago
Read 2 more answers
What is the solution of the equation 16-17+ Vb=1?<br> b = 3<br> O b = 9<br> O b = 81<br> no solution
statuscvo [17]
B=3 is the correct answer
4 0
3 years ago
what is the multiplicative rate of change for the following coordinates (-1, .8) (0,2) (1,5) (2,12.5)
egoroff_w [7]
We can present these coordinates in tabulate form

    x         y
   -1       0.8
   0         2
    1         5
    2      12.5

We work the multiplicative rate of change by finding out the increase ratio

12.5 ÷ 5 = 2.5
5 ÷ 2 = 2.5
2 ÷ 0.8 = 2.5

The ratio results in the same ratio every time, which is 2.5

The multiplicative rate of change = 2.5


5 0
4 years ago
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