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notka56 [123]
4 years ago
10

Estimate by rounding the second factor to the nearest ten. Then enter the product.

Mathematics
2 answers:
yanalaym [24]4 years ago
8 0
The estimate is 90
The product is 810
Nata [24]4 years ago
3 0

Answer:

Estimate - 90

Product - 9 x 90

= <u>810</u>

<em>pls mark as branliest buddy</em><em> </em><em>:</em><em>-D</em>

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2
Kay [80]

Answer:

76

Step-by-step explanation:

140-56= 84

140-84=56

160-84=76

6 0
3 years ago
The temperature is 8° F. As a cold front move in, the temperature drops
Sergio039 [100]
-10 F

Subtract 6 from 8 three times for each hour, and you get -10 F.
6 0
3 years ago
Marcia said that if she estimates 73x7, the product will be less than the exact answer. Is she correct? Explain.
zloy xaker [14]
Yes it would be 511 witch estimated is 510 so yes she Is correct
7 0
3 years ago
If a car has tires with a diameter of 28 inches and is traveling at 55 mph, how fast are its tires spinning, in rpm^ prime s (re
Aleksandr-060686 [28]

Answer:

The tires are spinning at 660.49 revolutions per minute.

Step-by-step explanation:

The speed of the tires (v) is the same that the speed of the car, so to find the angular velocity of the tires we need to use the equation:

\omega = \frac{v}{r}

Where:

r: is the radius of the tires = d/2 = 28 inches/2 = 14 inches

\omega = \frac{55 mph}{14 inches*\frac{1 mile}{63360 inches}} = 2.49 \cdot 10^{5} \frac{rad}{h}*\frac{1 h}{60 min}*\frac{1 rev}{2\pi rad} = 660.49 rpm              

Therefore, the tires are spinning at 660.49 revolutions per minute.

   

I hope it helps you!          

5 0
3 years ago
the temperature in the morning was -2 degrees F. By the afternoon, the temperature had risen 9 degrees F. What was the afternoon
Lilit [14]
9° - -2° = 7. Therefore, the temperature would be 7°.
4 0
4 years ago
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