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Leviafan [203]
3 years ago
12

Brainliest plus 20 points just answer these 4 questions (Math)

Mathematics
1 answer:
BARSIC [14]3 years ago
6 0

Answer:

1. R = T/3 ( R = Ruth's earnings, T = total earnings)

2. C = D - 5 ( C = Carl's age, D = Donald's age)

3. M = 35h ( M = Miles traveled, h = No. of hours )

4. S = R - 4 ( S and R = Sam and Randy's allowance respectively )

I hope this helps.

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If the sphere shown above has a radius of 10 units, then what is the approximate volume of the sphere?
katrin [286]

Answer:

4188.79

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A sales clerk earns a 3% comminsion on each sell. What is the comminsion earned on a sale of $4450?
aniked [119]
$133.5 because 3% of 4450 is 133.5
7 0
4 years ago
A pair of sunglasses has 2 lenses. Each lenses has a radius of 3.5 inches.
sineoko [7]

Answer:

76.93

Step-by-step explanation:

bc your formula is A=πrsquared so 3.14(π) ×3.5×3.5 bc when it's squared it's the number times itself93

so 3.14×3.5×3.5=38.456

38.456+38.456 because you need the area for both so I added the same number to it or you can multiply by 2 if you want

38.456+38.456=76.93

5 0
4 years ago
A pedestrian bridge is 53 meters long. Due to changes in temperature, the bridge may expand or contract by as much as 21 millime
Katena32 [7]

Length of bridge = 53 meters

Length changes expected due to changes in temperature = expansion or contraction by 21 millimeters (or 0.021 meters)

Let length of bridge at any given time be 'a'

As an absolute value equation, the situation can be expressed as:

⇒ |a-53| < 0.021

Solving the equation

⇒ -0.021 < a-53 < 0.021

⇒ 53 - 0.021 < a < 53 + 0.021

⇒ 52.979 < a < 53.021

Hence, the minimum length of the bridge can be 52.979 meters and the maximum length of the bridge can be 53.021 meters.

4 0
3 years ago
Brainiiest
german
Do -4 times 3.2 and then do the same thing plzzz help me with a question now plzzz I all give you 100 points
4 0
4 years ago
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