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Irina18 [472]
3 years ago
14

-7d + 8 > 29 Find the inequalitie for d show work please Thank you

Mathematics
1 answer:
Sindrei [870]3 years ago
7 0
<h3>The inequality for d is: d < -3</h3>

<em><u>Solution:</u></em>

<em><u>Given inequality is:</u></em>

-7d + 8> 29

We have to solve the inequality

From given,

-7d + 8> 29

\mathrm{Subtract\:}8\mathrm{\:from\:both\:sides}\\\\-7d+8-8>29-8\\\\\mathrm{Simplify}\\\\-7d>21\\\\\mathrm{Multiply\:both\:sides\:by\:-1\:\left(reverse\:the\:inequality\right)}

When we multiply or divide the both sides of inequality by negative number, we have to flip the inequality sign

\left(-7d\right)\left(-1\right)

Therefore,

-7d+8>29\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:d

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Kelly is painting her bedroom wall.she paints 1/3 of the wall in 3/5 of an hour. What is her rate per hour
il63 [147K]

Answer:

The answer is 5/9

Step-by-step explanation:

It is 5/9 because you have to do cross multiplication, 3 times 3 is 9 which will be the dominator and 5 times 1 which is 5 and the numerator.  Hope this helped please mark brainliest.

4 0
2 years ago
What's 7/8 as a decimal?<br> a. 7.8<br> b. .875<br> c. 8.7<br> d. .78
OverLord2011 [107]
If you would like to write 7/8 as a decimal, you can do this using the following steps:

7/8 = (125*7)/1000 = 875/1000 = 0.875 = .875

The correct result would be b. .875.
5 0
3 years ago
Find the volume of a pyramid with a square base, where the perimeter of the base is 8.2\text{ cm}8.2 cm and the height of the py
7nadin3 [17]

Answer:

V=18.2cm^3

Step-by-step explanation:

The volume of the pyramid is given by:

V=\frac{A_{b}h}{3}

where A_{b} is the area of the base and h is the height.

We know that the height is:

h=13cm

Thus we need to find the area of the square at the base.

The perimeter of the square is:

p=8.2cm

this means that the length of the sides of the square is :

l=\frac{p}{4}\\ \\l=\frac{8.2cm}{4}\\ \\l=2.05cm

Now we can find the area of the base which the area of the square:

A_{b}=l^2\\A_b=(2.05cm)^2\\A_b=4.2025cm^2

and finally we find the volume:

V=\frac{A_{b}h}{3}

V=\frac{(4.2025cm^2)(13cm)}{3}\\ \\V=\frac{54.6325cm^3}{3}\\ \\V=18.2108cm^3

Which rounded to the nearest tenth of a cubic centimeter is: V=18.2cm^3

3 0
3 years ago
98 Points!<br><br> (3x^2^a - 4y^a z^3a )^2
vfiekz [6]

((3x^2)^a - (4y^a)(z^3a))^2

First, expand.

((3x^2)^a - (4y^a)(z^3a)) ((3x^2)^a - (4y^a)(z^3a))

Combine

3^(2a) - x^(4a) - 8 * 3^(2a)x^(2a)y^(a)z^(3a) + 16y^(3a)z^(6a)

hope this helps

5 0
3 years ago
Read 2 more answers
Help pleasejfjffjfjfjjffj
Darya [45]
The answer is -1.1
To get that i just subtracted 2.4 by 1.3 and then just carried over the negative sign
4 0
3 years ago
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