Ask question

Ask question

All categories

3 years ago

11

A bag contains 140 balls of various colours. If 30 red balls are added to the bag the proportion of red balls in the bag is doub

led. How many red balls were in the bag to begin with?

1 answer:

Elodia [21]3 years ago

8 0

Answer:

30

Step-by-step explanation:

because in order for something to double you need it times 2 or add itself together like 30+30 is 60 and that just doubled the original number 30

You might be interested in

Is 14 a solution for the equation -5 + 2x = 23? Explain.

Mila [183]

Answer:

Yes because after solving the equation, x does indeed equal 14.

Step-by-step explanation:

-5 + 2x = 23

2x = 23 + 5

2x = 28

x = 14

8 0

3 years ago

Read 2 more answers

Can someone help? TvT please

zysi [14]

Answer:

I don't know bro actually which question ❓

7 0

3 years ago

Line p contains point (6, -5) and is perpendicular to line q. The equation for line q is y = 3x + 5. 1) Write an equation for li

wel

Answer:

$y = -\frac{1}{3}x -3$

Step-by-step explanation:

Perpendicular lines have negative reciprocal slopes. To find the line, convert the slope of q and substitute it with (6, -5) into point slope form.

y = 3x + 5 is q. It has a slope of 3. So p will have a slope of -1/3.

$y - y_1 = m(x-x_1)\\y - -5 = -\frac{1}{3}(x - 6)\\y + 5 = -\frac{1}{3}x + 2\\y = -\frac{1}{3}x -3$

4 0

3 years ago

20000 into saving account 6% compound interest for 10 years

zimovet [89]

Answer:

210,000‬

Step-by-step explanation:

20,000 * 6% = 1,200‬

20,000 + 1,200 = 21,000

21,000 * 10 = 210,000‬

Therefore your answer is 210,000‬

3 0

3 years ago

Last year, lien earned 1200 more than her husband. Together they earned 45,200. How much did each of them earn?

d1i1m1o1n [39]

Answer:

Lien earned $23,800

Husband earned $22,600

Step-by-step explanation:

$45,200 divide it by 2 = $22,600

then you add $1,200 to $22,600 and get $23,800

4 0

4 years ago