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vladimir2022 [97]
3 years ago
11

4 + -5 * -1 + 8=? i need help so yeah

Mathematics
2 answers:
Natasha2012 [34]3 years ago
8 0

Answer:

1

Step-by-step explanation:

4+(-5*-1)-8

4+5-8

9-8

pemdas

olga_2 [115]3 years ago
5 0

Answer:

4 easy

Step-by-step explanation:

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A student drove to the university from her home and noted that the odometer reading of her car increased by 16.0 km. The trip to
notka56 [123]

Answer:

Average speed is 48 km per hour

Step-by-step explanation:

A student drove to the university from her home and noted that the odometer reading of her car increased by 16.0 km. The trip took 20.0 min. (a) What was her average speed? in km/hr

Distance traveled is 16 km and the time taken is 20 minutes

convert minutes into hour. to convert minutes into hour we divide by 60 because 1 hour = 60 minutes

\frac{20}{60} =\frac{1}{3}

so time = 1/3  and distance = 16

Average speed = distance by time

speed =\frac{16}{\frac{1}{3} } =\frac{48}{1}= 48

Average speed is 48 km per hour

4 0
3 years ago
Please answer right away
Andreas93 [3]

Answer:

20 miles with an error margin of  ± 8 miles

Step-by-step explanation:

The margin of error of a result is the range in which an error can vary. To find the margin of error between both distances we have to

28-12 = 16, that is, the variation of the result has a range of 16 miles. So we will look for the midpoint of both distances

(X2-X1)/2+X1=(28-12)/2+12=16/2+12=8+12=20

So from this midpoint the value can vary between 8 points below and 8 points above that would cover the difference of 16 miles that we observed at the beginning

In this way, the correct answer is 20 miles with an error margin of  ± 8 miles

Done

8 0
3 years ago
Pleasee help thanks!​
qaws [65]

Answer:

I believe your answer is A.

Step-by-step explanation:

2x2x2

2x2=4

4x2=8

Therefore, x=2.

3 0
3 years ago
Read 2 more answers
Write 17/25 as a percent
WINSTONCH [101]

Answer:

68%

Step-by-step explanation:

Times both the top and bottom number by 4.

6 0
3 years ago
Read 2 more answers
Does anyone know the answer??
vichka [17]

Answer:

100.00

Step-by-step explanation:

x=number of months until the costs are the same

50 + 20x = 25 + 30x

25 = 10x

x = 2.5 months

50 + 2.5(20) =$100.00

7 0
3 years ago
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