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Oksi-84 [34.3K]
3 years ago
12

Two numbers are in ratio s:t .if the first is a,find the second​

Mathematics
1 answer:
Whitepunk [10]3 years ago
7 0

Answer:

The second number is a*t/s

Step-by-step explanation:

s/t = a / x   Let x be the second number.

sx = at       divide by s

x = at/s

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7x - 2 = 2y 3x = 2y - 1
77julia77 [94]
<span>7x - 2 = 2y
7x = 2y + 2
so
</span>7x = 2y + 2<span>
3x = 2y - 1 
----------------subtract
4x = 3
  x = 3/4

</span>7x - 2 = 2y
7(3/4) - 2 = 2y
21/4 - 2 = 2y
21/4 - 8/4 = 2y
13/4 = 2y
so
y = 13/4 * 1/2
y = 13/8

answer
<span>(3/4, 13/8)</span>


4 0
3 years ago
5x + 8 − 3x = −10<br><br> x = −9<br> x = −1<br> x = 1<br> x = 9
zvonat [6]

Answer:

-9

Step-by-step explanation:

7 0
4 years ago
Bailey bought a lawnmower for $600. The value of the lawnmower depreciates 2% every year. What is the value of the lawnmower aft
givi [52]

Answer:

$542

Step-by-step explanation:

we know that

The equation of a exponential decay function is given by

y=a(1-r)^x

where

y is the value of the lawnmower

x is the time in years

a is the initial value

r is the rate of change

we have

a=\$600\\r=2\%=2/100=0.02

substitute

y=600(1-0.02)^x

y=600(0.98)^x

For x=5 years

y=600(0.98)^5=\$542

8 0
3 years ago
Identify the independent and dependent variables in the following situation: The more hours Beth studies, the higher the GPA she
grandymaker [24]
Hours and studying: independent
GPA: dependent
5 0
3 years ago
SIMPLIFY this expression.
oksano4ka [1.4K]

Answer:

none of the answer above

Step-by-step explanation:

it should be

16x +8 or 8(2x+y)

group the number together according to alphabet and number

8 0
3 years ago
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