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ankoles [38]
4 years ago
13

Twin​ brothers, Billy and​ Bobby, can mow their​ grandparent's lawn together in 112 minutes. Billy could mow the lawn by himself

in 15 minutes less time that it would take Bobby. How long would it take Bobby to mow the lawn by​ himself?
Mathematics
1 answer:
dalvyx [7]4 years ago
6 0

Answer:

97 minutes

Step-by-step explanation:

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PLEASE ANSWER FAST!!! WILL MARK BRAINLIEST IF CORRECT!!! I AM BEING TIMED> ALSO WILL GIVE THANKS AND 5 STARS
vichka [17]

Answer:

So, I'm assuming false

Step-by-step explanation:

1. Determine the number by which to increase the smaller exponent by so it is equal to the larger exponent.

2. Increase the smaller exponent by this number and move the decimal point of the number with the smaller exponent to the left the same number of places. .

3. Add or subtract the new coefficients.

6 0
4 years ago
From a group of 8 people 5 will each win $1,000 how many different winning groups are possible
anygoal [31]

<em>Explanation: So 8 can't go into 1 but can go into 10 then add 2 more zeros . minus you will get 7000 divided by 5 will equal 14 divide by 5 will equal 4... so 4% chances that any one can win $1000</em>

<em />

<em>Answer:4%</em>

7 0
3 years ago
A factory that manufactures screws is performing a quality control experiment. Each object should have a length of no more than
-BARSIC- [3]

Answer:

a) Null Hypothesis: length of each screw is less than 14 centimeters

b) Alternate Hypothesis: length of each screw is equal to or greater than 14 centimeters

Step-by-step explanation:

Complete question

A factory that manufactures screws is performing a quality control experiment. Each object should have a length of no more than 14 centimeters. The factory believes that the length of the screws exceeds this value and measures the length of screws. The sample mean screw length was centimeters. The population standard deviation is known to be centimeters.

1. What is the null hypothesis?

2. What is the alternative hypothesis?

Solution :

The null hypothesis is basically the problem statement that needs to be tested.

Alternate hypothesis is opposite of that of null hypothesis

a) Null Hypothesis: length of each screw is less than 14 centimeters

b) Alternate Hypothesis: length of each screw is equal to or greater than 14 centimeters

7 0
3 years ago
Hi guys! could you please help me out with this real quick? Thanks y'all!<br><br> -Grace :))
Alla [95]

Answer:

B

Step-by-step explanation:

is the only one with a constant rate of change which would be -2

8 0
3 years ago
Evaluate each value expression for the given value of the variable : 33-7w +6 when w=4
azamat

Answer:

11

Step-by-step explanation:

33-(7*4)+6

33-28+6=11

7 0
3 years ago
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