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iris [78.8K]
3 years ago
11

Which is a correct first step for solving this equation-5(4x-7)+=3x

Mathematics
2 answers:
steposvetlana [31]3 years ago
5 0

Answer:

Start by multiplying -5 by 4x and -7.

arlik [135]3 years ago
3 0

Answer:

Changing the equation to -20x+35=3x

Step-by-step explanation:

You would multiply each number in the parenthesis by -5

Hope this helps :)

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16. If a customer's check subtotal comes to $27.14,
horsena [70]

Answer:

$28.77

Step-by-step explanation:

If the subtotal is $27.14, and the tax to add is 6%, the total would be:

$27.14*(1+0.06)=$28.77

3 0
3 years ago
Read 2 more answers
Jollibee employs a total of 10 cashiers and 15 kitchen crews. The manager selects a team of 2 cashiers and
Airida [17]

Answer:

The manager can select a team in 61425 ways.

Step-by-step explanation:

The order in which the cashiers and the kitchen crews are selected is not important. So we use the combinations formula to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In how many ways can the manager select a team?

2 cashiers from a set of 10.

4 kitchen crews from a set of 15. So

T = C_{10,2}*C_{15,4} = \frac{10!}{2!(10-2)!}*\frac{15!}{4!(15-4)!} = 45*1365 = 61425

The manager can select a team in 61425 ways.

7 0
2 years ago
Find the volume.<br> 12 m<br> 6 m<br> 8 m
Simora [160]

Answer:576

Step-by-step explanation:

Volume is all the sides multiplied together. 12 x 6 x 8=576

7 0
3 years ago
Read 2 more answers
It takes 300 newtons of force and a distance of 20 meters for a moving car to come to stop. How much work is a one n the cart?
IceJOKER [234]
Work done on cart
:

W
=
6000

J
Kinetic energy of cart
:

E
K
=
6000

J
Explanation:
Work done
W
is defined as the product of force
F
and distance
s
:
⇒
W
=
F
⋅
s
Let's substitute the values of
F
and
s
into the equation:
⇒
W
=
300

N

⋅
20

m
⇒
W
=
300

kg

⋅

m s
−
2

⋅
20

m
⇒
W
=
300
⋅
20

kg

⋅

m
2

s
−
2
⇒
W
=
6000

kg

⋅

m
2

s
−
2
∴
W
=
6000

J
The gain in kinetic energy
E
K
is the same amount as the work done moving the cart:
∴
E
K
=
6000
7 0
3 years ago
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
Alenkasestr [34]

Answer:

A = -10

Step-by-step explanation:

x^2 + 10x + 24 = 0

To find the roots, we need to factor the equation.

What 2 numbers multiply to 24 and add to 10

6*4 = 24

6+4 = 10

(x+6) (x+4)=0

Using the zero product property

x+6 = 0  x+4 = 0

x = -6   x = -4

We want the sum when the roots are added

-6+ -4 = -10

6 0
3 years ago
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