3 years ago

I need all I don't know how to do????

Mathematics

1 answer:

Ghella [55]3 years ago

6 0

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Two friends left school at the same time and drove in opposite directions. One friend averages 40 miles per hour and the other f

EastWind [94]

The two friends will be 150 miles apart, when the sum of the distances covered by the them is 150 miles.

distance = speed x time.
Let the time covered when they are 150 miles apart be x, then:
40x + 35x = 150
75x = 150
x = 150/75 = 2.

Therefore, the two friends will be 150 miles apart in 2 hours.

3 0

3 years ago

What is 8.89 × 1010 in standard notation?

SSSSS [86.1K]

Answer:

8978.9

Step-by-step explanation:

MULTIPLY THE THE GIVEN AND

8.89 × 1010 = 8978.9

THEN THE RESULT WOUD BE THE STANDARD NOTATION.

8 0

2 years ago

Need help ASAP! Please help with the slope to this question m= <br> B=

Inessa [10]

y=mx+b

therefore m = 1/2

and b = -6

7 0

2 years ago

3(3x+9)=-5-2x what is x

-BARSIC- [3]

Answer:

x=2.9

Step-by-step explanation:

3(3x+9)= -5-2x ( distribute)

9x+27= -5-2x (add 2x) (subtract 27)

11x= 32 ( divide by 11)

x= 2.9

3 0

3 years ago

Solve for 2/5 + 3/8= With two possible answeres

Pani-rosa [81]

You can change the denominators so they are alike. $\frac{16}{40} + \frac{15}{40} = \frac{31}{40}$
Not sure how there can be two possible answers unless you're mentioning the decimal form:
.775
Tell me if this helps!!

6 0

2 years ago