Ask question

Ask question

All categories

3 years ago

14

A box contains 14 candy bars of equal weight the weight of the empty box is 10 ounces and the total weight of the box and the ca

ndy bars is 80 ounces which method can be used to find the weight in ounces
Is it F G H or J

1 answer:

Anvisha [2.4K]3 years ago

4 0

H and J are out bc that's subtracting the 14 candy bars, which we just want to subtract the weight of the 10 oz of the box from 80 oz to get the total amount of candy bar ox, which equals 70 oz. Since you want to find how much each candy bar weighs you have to divide the difference between 14. - The answer is answer letter G.

You might be interested in

Consider the quadratic function f(x)=−x^2+x+30

yaroslaw [1]

Answer:

The smallest xx-intercept is $x = -5$

The largest xx-intercept is $x = 6$

The yy-intercept is $y = 30$ .

Step-by-step explanation:

Given a quadratic function in the following format:

$f(x) = ax^{2} + bx + c = 0, a \neq 0$

The x-values of the x-intercepts are $x_{1}, x_{2}$ , given by the following formulas.

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

We have that:

$f(x) = -x^{2} + x + 30$

This is not in the format above. I will multiply by (-1), so we have:

$f(x) = x^{2} - x - 30$

So, $a = 1, b = -1, c = -30$

$\bigtriangleup = b^{2} - 4ac = (-1)^{2} - 4*(1)*(-30) = 1 + 120 = 121$

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a} = \frac{-(-1) + \sqrt{121}}{2(1)} = \frac{12}{2} = 6$

$x_{2} = \frac{-b + \sqrt{\bigtriangleup}}{2*a} = \frac{-(-1) - \sqrt{121}}{2(1)} = \frac{-10}{2} = -5$

This means that

The smallest xx-intercept is $x = -5$

The largest xx-intercept is $x = 6$

The y-intercept is the value of f(x) when x = 0. So

$f(x)=−x^{2}+x+30$

$f(0) = 30$

The yy-intercept is $y = 30$ .

5 0

3 years ago

Solve for AB<br><br><br> a: 3.6<br> b: 15<br> c: 4<br> d: 10

IrinaK [193]

A because 9 divided by 15 equals 0.6. Then I multiply 0.6 times 6 which equals 3.6. I didn’t 9 divided by 15 because they are congruent.

4 0

3 years ago

Danielle is making protein balls. She uses 1 1/2 cups of protein powder, 2 1/4 cups of peanut butter, and 2/3 cup of honey. Whic

sertanlavr [38]

Answer:

4 (5/12). four and five-twelfths

Step-by-step explanation:

1/2 is the same as 2/4, so: 1 1/2 = 1 2/4

1 2/4 + 2 1/4 = 3 3/4

3/4 and 2/3 have a LCM or least common multiple of 12

4 x 3 = 12 and 3 x 4 =12; but whatever you do to the bottom you have to do to the top (3/4) turns into (9/12) and (2/3) turns into (8/12)

9/12 + 8/12 = 17/12 or 1 5/12 as a mixed number

3 + 1 5/12 = 4 5/12

7 0

3 years ago

Read 2 more answers

Mike observed that 75% of the students of a school liked skating. If 35 students of the school did not like skating, the number

Allisa [31]

If 75% liked skating, then 25% did not
so 25% of what is 35
0.25x = 35
x = 35/0.25
x = 140...so there is a total of 140 students

75% of 140 =
0.75(140) = 105...so 105 students liked skating

7 0

3 years ago

The number of cars sold annually by used car salespeople is normally distributed with a standard deviation of 16. A random sampl

Kazeer [188]

Answer:

The 90% confidence interval is (64.0101, 68.9899).

Step-by-step explanation:

Our sample size is 310.

The first step to solve this problem is finding our degrees of freedom, that is, the sample size subtracted by 1. So

$df = 310-1 = 309$ .

Then, we need to subtract one by the confidence level $\alpha$ and divide by 2. So:

$\frac{1-0.90}{2} = \frac{0.10}{2} = 0.05$

Now, we need our answers from both steps above to find a value T in the t-distribution table. So, with 309 and 0.05 in the two-sided t-distribution table, we have $T = 1.65$

Now, we find the standard deviation of the sample. This is the division of the standard deviation by the square root of the sample size. So

$s = \frac{16}{\sqrt{310}} = 1.2060$

Now, we multiply T and s

$M = 1.65*1.2060 = 1.9899$

Then

LCL is the mean subtracted by M. So:

$LCL = 66 - 1.9899 = 64.0101$

UCL is the mean added to M. So:

$LCL = 66 + 1.9899 = 68.9899$

The 90% confidence interval is (64.0101, 68.9899).

6 0

3 years ago