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Mrrafil [7]
3 years ago
11

You were billed $28.50 for additional data usage on your cell phone at a rate of $9 per gigabyte. Three choices are correct ways

to calculate the additional gigabytes, g, that you used. Which choice is NOT? (9g=28.5) (9g=28.5) ( 28.5=9⋅g) (28.59=g)
Mathematics
2 answers:
tester [92]3 years ago
6 0

Answer: 28.59=g is incorrect.

Step-by-step explanation:

Hi, to answer this question we have to analyze the information given:

Bill for additional data usage: $28.50

Cost per gigabyte: $9

To calculate the additional gigabytes we have to write an expression where the total bill ($28.5) is equal to the gigabytes used (g) multiplied by the cost per gigabyte.

Mathematically speaking:

28.5 = 9g

The three first options are correct (one is put in a different order but is the same expression). So, the incorrect option is (28.59=g).

Vika [28.1K]3 years ago
3 0

Answer:

The answer 28.59=g

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SashulF [63]

Answer:

-3x^3 + x^2 + 4x +6

Answer is C

Step-by-step explanation:

6 0
3 years ago
Mai and Priya were on scooters. Mai traveled 15 meters in 6 seconds. Priya traveled 22 meters in 10 seconds. Who was moving FAST
LenaWriter [7]

Answer:

mai is faster

Step-by-step explanation:

because even though she on goes 15 meters in 6 seconds she would have 4 times the advantage because of the extra 4 seconds she has

6 0
3 years ago
The estimate of the population proportion should be within plus or minus 0.02, with a 90% level of confidence. The best estimate
Rudiy27

Answer:

The sample size required is 910.

Step-by-step explanation:

The confidence interval for population proportion is:

CI=\hat p\pm z_{ \alpha /2}\sqrt{\frac{\hat p(1-\hat p)}{n} }

The margin of error is:

MOE=z_{ \alpha /2}\sqrt{\frac{\hat p(1-\hat p)}{n} }

Given:

\hat p = 0.16\\MOE= 0.02\\Confidence\ level =0.90

The critical value of <em>z</em> for 90% confidence level is:

z_{\alpha /2}=z_{0.10/2}=z_{0.05}=1.645 *Use a standard normal table.

Compute the sample size required as follows:

MOE=z_{ \alpha /2}\sqrt{\frac{\hat p(1-\hat p)}{n} }\\0.02=1.645\times \sqrt{\frac{0.16(1-0.16)}{n} }\\n=\frac{(1.645)^{2}\times 0.16\times (1-0.16)}{(0.02)^{2}} \\=909.2244\\\approx910

Thus, the sample size required is 910.

5 0
4 years ago
A consistent system of equations is a system with __________.
bearhunter [10]
<h3>Answer:</h3>

D) Intersecting lines and lines that have the same equation

<h3>Explanation:</h3>

A system is "inconsistent" when it has no solution: the lines are parallel; they have the same slope but do not intersect.

A system is "consistent" when it has one or more solutions. There will be one solution when the lines intersect at one point. There will be more solutions when the lines have the same equation (the equations are dependent). Answer choice D covers both these cases.

8 0
3 years ago
the length of the corral is 1.5 times the width. if 119 of fencing was used to make the corral what are the dimensions
Evgen [1.6K]

width = w

length = 1.5 w

perimeter = 2(l+w)

substitute 119 for p and 1.5 for w

119 = 2 (1.5w +w)

119 = 2 (2.5w)

119 = 5w

23.8 = w

l = 1.5w

l = 1.5 * 23.8

l =35.7

the length is 35.7 and the width is 23.8


6 0
3 years ago
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