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3 years ago

I need help with the first part I will give brainliest

Mathematics

2 answers:

Olegator [25]3 years ago

7 0

Answer:

I believe the answer is $3.50

Step-by-step explanation:

1. You can see that 2 candy bars (x axis) sold result in $7 being spent (y axis).

2. To get how much the band makes for selling 1 candy bar, you divide the $7 by two.

kaheart [24]3 years ago

4 0

Answer:15 candy bars are solddd

Step-by-step explanation:

You might be interested in

Write the money amount as a fraction terms of dollars $1.00?

mash [69]

Hello Amontessemprit,

Answer: $1.00 = 1

How I got my answer,

Rewrite the decimal number as a fraction with 1 in the denominator
$1.00 = $1.00/1

Multiply to remove 0 decimal places. Here, you multiply top and bottom by 10^0
$1.00/1 × 1/1 = 1/1

Simplify the improper fraction, = 1

In conclusion, $1.00 = 1

7 0

4 years ago

-3+4u=-31 solve for u

solniwko [45]

Answer:

u = -7

Step-by-step explanation:

-3+4u=-31

Add 3 to each side

-3+3 +4u = -31+3

4u = -28

Divide each side by 4

4u/4 = -28/4

u = -7

8 0

4 years ago

A set of middle school student heights are normally distributed with a mean of 150150150 centimeters and a standard deviation of

adell [148]

Answer:

71.57% of student heights are lower than Darnell's height

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

$\mu = 150, \sigma = 20$

Darnell has a height of 161.4 centimeters. What proportion of student heights are lower than Darnell's height?

This is the pvalue of Z when X = 161.4.

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{161.4 - 150}{20}$

$Z = 0.57$

$Z = 0.57$ has a pvalue of 0.7157

71.57% of student heights are lower than Darnell's height

5 0

3 years ago

M< DXB = 70° 15' 12" M< DXC =30 30 20 M< CXB. AO° A1' A2"

Ostrovityanka [42]

Maybe 40 degrees
Please mark as brainliest it correct thank you ;)

6 0

3 years ago

Given the equation below, which of the following shows the quadratic formula

Musya8 [376]

Answer:

Step-by-step explanation:

$x=\frac{-(-9)\pm\sqrt{(-9)^2-4(2)(4)} }{2 \times 2} \\x=\frac{9\pm\sqrt{81-32} }{4} \\x=\frac{9\pm\sqrt{49} }{4} \\x=\frac{9 \pm 7}{4} \\either~x=\frac{9+7}{4} =\frac{16}{4} =4\\or\\x=\frac{9-7}{4} =\frac{2}{4} =\frac{1}{2}$

7 0

2 years ago