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TiliK225 [7]
3 years ago
13

In a large backyard, there are 4 times as many shrubs as trees. Altogether, there are 40 trees and shrubs. How many trees are in

the yard? How many shrubs?
Mathematics
2 answers:
Rzqust [24]3 years ago
8 0
Ten trees because Ten times Four is Forty. 
Nonamiya [84]3 years ago
7 0

Answer:

Please mark me brainliest and I hope this helped!

Trees: 8

Shrubs: 32

Step-by-step explanation:

If there are 4 times as many shurbs as trees, then in total, we should split it into 5 parts. So we should divide 40 by 5. That gives us 8, so there are 8 trees. Shrubs is 4 times as much, so there are 8 times 4 shrubs which is 32 shrubs.

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Arisa [49]

Answer:

12 bags of popcorn and 4 sodas

Step-by-step explanation:

Quantity: Popcorn =3x       Sodas=x

Value: Sodas - $4.50, Popcorn - $1.50

Total Value: $36

3x(1.5)+4.5x=36

4.5x+4.5x=36

9x=36

x=4

Therefore, 12 bags of popcorn and 4 sodas

3 0
3 years ago
A sports magazine claims that in a certain country, 45% of people like soccer A news channel asked 30 randomly selected people i
LiRa [457]

Answer:

Step-by-step explanation:

Hello!

The parameter of interest is "the population proportion of people that like soccer A news channel"= p

The hypothesis are:

H₀: p = 0.45

H₁: p ≠ 0.45

To study the population proportion you have to use the approximation of the standard normal distribution:

Z= \frac{p'-p}{\sqrt{\frac{p(1-p)}{n} } } ≈ N(0;1)

A sample of n=30 was taken and surveyed, 18 of those answered positively, then the sample proportion is:

p'= 18/30= 0.6

The statistic under the null hypothesis is:

Z_{H_0}= \frac{0.60-0.45}{\sqrt{\frac{0.45*0.55}{30} } } = 1.6514

I hope it helps!

6 0
3 years ago
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Answer:

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7 0
3 years ago
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Find an equation for the nth term of the arithmetic sequence. <br> -3, -5, -7, -9, ...
tankabanditka [31]

Answer:

a(n) = -3 - 2(n-1)

Step-by-step explanation:

The most general formula for the nth term of an arithmetic sequence (such as this sequence is) is

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Here a(1) = -3 and c = -2.

Thus,

a(n) = -3 - 2(n-1).

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3 years ago
For what values of x will 8+x to the third power be negative
Ganezh [65]

(8+x)^3 < 0

take the cube root

8+x <0

subtract 8

x<-8

Answer x<-8

6 0
3 years ago
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