3 years ago

Nikki had 70% of her savings left in her bank account. If she has $230 in her bank account, how much did she start with?

Mathematics

1 answer:

Alex3 years ago

6 0

Answer:

$299

Step-by-step explanation:

Given that 70% is $230 you can divide this by 7 to get 10%.

10% is 23. The remaining percentage we need is 30.

Soo 10% x 3 = 30%. (23x3)

23 x 3 = 69.

69 + 230 = $299

You might be interested in

Х у 5 3 6 4 . 7 5 8 6

neonofarm [45]

Answer:

Is this a question or is this spamming numbers ?

4 0

3 years ago

Read 2 more answers

Please help me! I'll give brainliest!

german

Tan A = BC/AB = 15/8

answer is B. 15/8

6 0

3 years ago

Read 2 more answers

stat: sample of 780 adults in the U.S.A., it was found that 80 of those had a pinworm infestation. You want to find the 99% conf

Anettt [7]

Answer: 554

Step-by-step explanation:

If prior population proportion is known, then the formula to find the sample size is given by :-

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2$

As per given description, we have

p= 0.1

E=0.025

Critical z-value for 95% confidence : $z_{\alpha/2}=1.96$

Then,

$n=0.1(1-0.1)(\dfrac{1.96}{0.025})^2=553.1904\approx554$

Hence, the minimum sample size required = 554.

7 0

3 years ago

How could you use subtraction to find the area of a figure

wel

Answer:

brainly.com/question/7699717

Step-by-step explanation:

8 0

3 years ago

What is the y-intercept of the line y = -7x + 1?

sesenic [268]

y-intercept when x = 0
so
y = -7x + 1
y = -7(0) +1
y = 1

7 0

3 years ago

Read 2 more answers