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Stells [14]
2 years ago
7

If the ratio is a:b=7:4 b:c=2:5 work out a:c=?

Mathematics
1 answer:
frozen [14]2 years ago
6 0

Step-by-step explanation:

a:b=7:4 b:c=2:5

a:c = 7:5

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4(3x - 2) - x = 3x - 4x
Oduvanchick [21]

Answer:

2/3

Step-by-step explanation:

Step 1:

4 ( 3x - 2 ) - x = 3x - 4x

Step 2:

12x - 8 - x = - x

Step 3:

11x - 8 = - x

Step 4:

11x = - x + 8

Step 5:

12x = 8

Answer:

x = 2/3

Hope This Helps :)

4 0
3 years ago
Read 2 more answers
The second term is 5 the fourth term is 12 and the seventh term is 22. 5 what is the first term?
Naddik [55]

Answer:

3.5

Step-by-step explanation:

each jump will increase 3.5

order: 2   3   4    5    6     7

num:   5 8.5 12 15.8 19 22.5

7 0
2 years ago
A graphic designer worked 20 hours last week. Their hourly rate is 19.52 per hour. How much money did they make last week before
sleet_krkn [62]

Answer:

20 * 19.52 = 390.40

Thank you and please rate me as brainliest as it will help me to level up

6 0
3 years ago
-5x+7=1, then x= A. -1.2 B. -1.1. C. 0.2. D. 1.1 e. 1.2
fiasKO [112]

Answer:

E

Step-by-step explanation:

-5x+7=1

-5x=-6

x= 1.2

E

6 0
4 years ago
Read 2 more answers
The vultures football team made the following gains on four plays :14 yards,-32 yards,3 yards,and -19 yards? What was the net ch
8090 [49]

The sum of gains is

... (14 yd) + (-32 yd) + (3 yd) + (-19 yd)

... = (14 +3 -19 -32) yd . . . . . . it is often convenient to rearrange the numbers to facilitate mental arithmetic

... = (-2 -32) yd

... = -34 yd

The net change of position was -34 yards.

6 0
3 years ago
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