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Ganezh [65]
3 years ago
5

Juan exercised 120 minutes this week. If this was 10 minutes more than 2 times the amount of time he exercised last week, how ma

ny minutes did he exercise last week?
Mathematics
1 answer:
Kazeer [188]3 years ago
7 0

Answer:

55 minutes

Step-by-step explanation:

120-10=110

110/2=55

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Please help me with this question! ASAP
Makovka662 [10]

The answer is B. h + (h - 1.5) =25

4 0
3 years ago
Which store offers the lowest unit rate for lettuce in dollars per pound?
vlabodo [156]
Answer: Farm Fresh

Explanation: Farm Fresh offers the lowest unit rate for lettuce, in dollars per pound. It after the lettuce at a lower price compared to the rest
5 0
3 years ago
The half-life of carbon 14 is years. How much would be left of an original -gram sample after 2,292 years? (To the nearest whole
lozanna [386]

Answer:

A = 0.75 gram or 1 gram

Step-by-step explanation:

The half-life of carbon 14 is years. How much would be left of an original -gram sample after 2,292 years? (To the nearest whole number).

We can use the following formula for half-life of ^{14}C to find out how much is left from the original sample after 2,292 years:  

A = A_{0}e^{-0.000124t}

where:

<em>A</em> is the amount left of an original gram sample after <em>t</em> years, and  

A_{0} is the amount present at time <em>t</em> = 0.

The half-life of  ^{14}C  is the time <em>t</em> at which the amount present is one-half the amount at time <em>t </em>= 0.

If 1 gram of  ^{14}C is present in a sample,  

 Solve for A when t = 2,292:  

Substituting A_{0}  = 1 gram into the decay equation, and we have:  

A = A_{0}e^{-0.000124t}

A = A_{0}e^{-0.000124(2,292)}

A = 0.75 g or 1 g  

6 0
2 years ago
A car wheel of diameter 35cm spins on a road.Over 2000cm, how many full rotations will the wheel have made?
ra1l [238]
Circumference = πD  = π(35) = 109.96 cm

Number of rotations = 2000 ÷ 109.96 = 18 full rotations.

Answer: 18 full rotations
8 0
2 years ago
A car race lasted 2.07 hours. How many seconds did the race last? If necessary, round your answer to the nearest tenth of a seco
valina [46]
2.07*3,600=7,452
7,452 seconds
                               

4 0
3 years ago
Read 2 more answers
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