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Lubov Fominskaja [6]
3 years ago
10

Solve the equation -3x - 5 =16 What does x =??

Mathematics
2 answers:
Paul [167]3 years ago
8 0

Answer: -7

Step-by-step explanation:

Move all terms that don't contain

x

x

to the right side and solve

Andru [333]3 years ago
5 0

Answer:

x=-7

Step-by-step explanation:

x = 21 \div  - 3  \\ x =  - 7

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Find the volume of the given prism. Round to the nearest tenth if necessary.
Novay_Z [31]

Given:

The base of the prism is a right triangle with legs 1 m and 2 m.

The height of the prism is 17 m.

To find:

The volume of the given prism.

Solution:

The area of a triangle is:

Area=\dfrac{1}{2}\times base\times height

So, the area of base of the prism is:

Area=\dfrac{1}{2}\times 1\times 2

Area=1

Now, the volume of the prism is:

V=Bh

Where, B is the base area and h is the height of the prism.

Substituting B=1,h=17, we get

V=(1)(17)

V=17

The volume of the prism is 17 cubic m. Therefore, the correct option is (d).

7 0
3 years ago
Doug earns $10.50 per hour working at a restaurant. On
alexira [117]
First, add all of the working hours.
1 \frac{3}{4} + 2 \frac{1}{3} + 1 \frac{5}{12}

Since the denominators are different, make them all the same.
1 \frac{9}{12} + 2 \frac{4}{12} + 1 \frac{5}{12}

Add everything together.
4 \frac{1}{12} + 1 \frac{5}{12} = 5 \frac{6}{12}

Then, simplify.
5 \frac{1}{2} or 5.5

Multiply the time by the salary.
<span>5.5*10.5= Doug earned $57.75</span>
3 0
3 years ago
The length of a rectangle is 7 cm than 6 times its width. It's area is 10 square centimeters. Find the dimensions
ad-work [718]
So legnth is 7 more than 6 times width
l=7+6w
area=10 cm^2

lw=area

subsitute
7+6w for l
(7+6w)(w)=10
7w+6w^2=10
subtract 10 from both sides
6w^2+7w-10=0
factor
multiply 6 and -10
get -60
now find what 2 numbers multiply to get -60 and add to get 7
the answe ris -5 and 12
split up 7w into that
6w^2+7w-10=0
6w^2+12w-5w-10=0
group
(6w^2+12w)+(-5w-10)=0
undistribute factors
(6w)(w+2)+(-5)(w+2)=0
reverse distribute (ab+ac=a(b+c)
(w+2)((6w)+(-5))=0
(w+2)(6w-5)=0
set each to zero
w+2=0
subtract 2
w=-2
false, legnths cannot be negative

6w-5=0
add 5
6w=5
divide both sides by 6
w=5/6
subsitute
l=7+6w
l=7+6(5/6)
l=7+5
l=12


legnth=12 cm
width=5/6 cm

7 0
4 years ago
5 1<br> 1)<br> 4 3<br> What is the anwser
BigorU [14]
This does not appear to make sense, could you perhaps add signs such as multiplication, division, etc.
6 0
3 years ago
Read 2 more answers
3x1 1 5-6 multiply the numbers and simplify the answer
weeeeeb [17]

Answer:

339

Step-by-step explanation:

3*115-6

=345-6

=339

4 0
3 years ago
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