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kolbaska11 [484]
3 years ago
11

7 + (-7) = what’s the answer?

Mathematics
1 answer:
zysi [14]3 years ago
8 0

Answer:

When you take a positive 7 and add a negative 7 you get 0

7+(-7)=0

Step-by-step explanation:

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What is 41/21 as a decimal?????????
Naddika [18.5K]

Answer:

1.952380

Step-by-step explanation:

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How do I solve x+2/3=5/6
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You would subtract 2/3 from 5/6 and that should give you 1/6
x=1/6
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Maria drove to a business appointment at 50mph in the morning. Her average speed on the return trip in the afternoon was 40 mph.
MakcuM [25]

Answer:

Distance to appointment point = 5 miles

Step-by-step explanation:

Let s be the distance to the appointment point,

We have Maria drove to a business appointment at 50mph in the morning.

Time taken in the morning

               t_m=\frac{s}{50}=0.02s

Her average speed on the return trip in the afternoon was 40 mph.

Time taken in the afternoon

               t_a=\frac{s}{40}=0.025s

Given that the return trip took 1/4hr longer because of traffic.

That is

             t_a-t_m=\frac{1}{4}hr=0.025hr

Substituting

             t_a-t_m=0.025hr\\\\0.025s-0.02s=0.025\\\\s=5miles

Distance to appointment point = 5 miles

7 0
3 years ago
Here is a right angled triangle work out the value of x using trigonometry
tatiyna

~~~~~\sin 30^{\circ} = \dfrac{\text{Perpendicular}}{\text{Hypotenuse} }\\\\\\\implies \dfrac 12 = \dfrac{8}x\\\\\\\implies x =  8\cdot2\\\\\\\implies x = 16 ~ \text{cm.}

6 0
2 years ago
Emily wanted to make shish kabobs for a barbecue she was having for her swim party. The bag she purchased from the grocery store
Anastasy [175]

Answer:

Emily's claim is correct that with 12 skewers which can hold 5 shrimp each, there will be 15 leftovers.

Step-by-step explanation:

Given that:

Total number of shrimp contained in the bag of Emily = 75

Number of skewers available = A dozen

A dozen means 12.

Therefore, there are 12 number of skewers available.

Each skewer can have = 5 number of shrimp

Total number of shrimp on the 12 skewers = 12 \times 5 = 60

Total number of leftover = Total number of shrimp in the bag - Total number of shrimp on the 12 skewers = 75 - 60 = 15

Therefore, Emily's claim is correct that with 12 skewers which can hold 5 shrimp each, there will be 15 leftovers.

5 0
3 years ago
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