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Mariana [72]
3 years ago
5

Plz help with Part A

Mathematics
1 answer:
aksik [14]3 years ago
4 0
4/5= 4 x 2=8
5 x 2=10

5/8=5 x 3 =15
6 x 3= 18
You might be interested in
Mark cycles from home to school at a speed of 16 kilometers per hour. He cycles back on the
katrin [286]

Answer:

Write a time equation, time = dist/speed

:

go time + return time = total time

d%2F16 + d%2F15 = 7.75 hrs

multiply equation by the least common multiple 240, cncel the denominators:

 

15d + 16d = 240(7.75)

31d = 1860

d = 1860/31

d = 60 km one way

total dist = 120 km

:

Check this, find the actual time each way

60/16 = 3.75 hrs

60/15 = 4 hrs

-----------------

total time 7.75 hrs

Step-by-step explanation:

7 0
2 years ago
The length of a rectangle is 3 less than 2 times its width. The area of the rectangle is 77 squared feet.
larisa86 [58]

Answer:

Let the Width(W) =X feet

then Length(L) = (2X-3)feet

Area of the rectangle (A)=77 square feet

A = L× W

L×W=A

(2X-3) × X = 77

2X²- 3X =77

2X²-3X -77=0

Solving it using the factorization method

2X²-14X+11X-77=0

(2X²-14X)+(11X-77)=0

2X(X-7) + 11(X-7)=0

(2X+11)(X-7) =0

When 2X+11=0

X= -11/2

When X-7=0

X = 7

Therefore X= 7

Width = X feet

= 7feet

The width is 7feet

Length = (2X-3)feet

= (2×7) -3)feet

=(14-3)feet

=11feet

3 0
2 years ago
Hi<br><br>answer correct and I will follow you​
Natasha2012 [34]

Answer:

you have the answer right

7 0
3 years ago
I NEED HELP ASAP PLZ FIND X
disa [49]

Answer:

X=7

Step-by-step explanation:

<3

6 0
3 years ago
5 more than 3 times a number w
Mila [183]
3 times w+5

3xW+5 ......
5 0
3 years ago
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