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Verizon [17]
2 years ago
13

7. What is 30% of 70? Show your work.

Mathematics
1 answer:
Stels [109]2 years ago
5 0
30% = 3/10 = .3

70 x .3 = 21
You might be interested in
X °
blondinia [14]

Answer:

86°

Step-by-step explanation:

180° is the sum of all angles in a triangle

The two angles given are 68° and 26°

The equation is : 180° - 68° - 26° = x°

180° - 68° - 26° = 86°

x° = 86°

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

6 0
2 years ago
if Macy's shorts are 45.99 and the owner says its a 20% how much will it be if you buy 5 pair of shorts?
galina1969 [7]
$45.99 x 5=$229.95
$229.95 x 20% =$45.99
6 0
3 years ago
We are interested in finding out the proportion of adults in the United State who cannot cover a $400 unexpected expense without
serious [3.7K]

Answer:

Step-by-step explanation:

given that we are interested in finding out the proportion of adults in the United State who cannot cover a $400 unexpected expense without borrowing money or going into debt.

Sample size = 765

Favour = 322

a) The population is the adults in the United State who cannot cover a $400 unexpected expense without borrowing money or going into debt

b) The parameter being estimated is the population proportion P of adults in the United State who cannot cover a $400 unexpected expense without borrowing money or going into debt.

c) point estimate for proportion = sample proporiton = \frac{322}{765} \\=0.4209

d) We can use test statistic here as for proportions we have population std deviation known.

d) Std error = 0.01785(\sqrt{\frac{pq}{n} }

Test statistic Z = p difference / std error

f) when estimated p is 0.50 we get Z = -4.43

g) Is true population value was 40% then

Z = 1.17 (because proportion difference changes here)

7 0
3 years ago
-8(-5+4x)=104 sssssssssssssssssssssssssssssssssssssssss
astra-53 [7]

Answer:

what is the meaning of 'sssssssssssssssssssssssss'

the answer is x=2

first work out -8(-5+4x) u will get 40+32x

40+32x=104 then group the like terms together.

it will become 32x=104-40. =32x=64

then divide both sides by 32 ur final answer is

x =2

3 0
2 years ago
Read 2 more answers
What about the inequality sign like < = >
docker41 [41]
The < and > signs mean lesser and greater than. = means equal(s). The signs will always look like they are eating the bigger value. For example:
12<29
Twelve is lesser than twenty-nine, or
29>12
Twenty-nine is greater than twelve.
An equation uses an equal sign
12+8=20
When you're using all of them, it can look like this:
1<n<29
This is read as "one is lesser than n which is lesser than 29". These can be used to determine the lengths of the sides of a triangle. In this case, n must be between 1 and 29 for it to be the side of a triangle.
4 0
2 years ago
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