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Effectus [21]
3 years ago
10

A−15=4a−3a solve for a

Mathematics
1 answer:
Vlada [557]3 years ago
6 0

Answer: A= -4

Step-by-step explanation:

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Please help me solve this question<br>4x+6&lt;-6
stiks02 [169]
4x + 6 < -6
subtract 6 from both sides
4x < -12
divide 4 on both sides
x < -3
7 0
4 years ago
What equation has the solution of x=25
Yuliya22 [10]
Alot of equations
x+1=26
x=3+22
x^2=625
x/2=12.5
4x=100
etc
5 0
3 years ago
Santa Claus has been experiencing some recent back pain and is unable to carry large bags of toys over his shoulders. As a resul
jeka57 [31]

Answer:

31 pounds

Step-by-step explanation:

From the information given, you can write the following formula to calculate the total cost of sending gifts:

Total cost of sending gifts=2.50+0.85x, where x is the weight of the gifts in pounds

Also, you know that the total cost of sending gifts is $28.85 and you can replace this value and solve for x:

28.85=2.50+0.85x

28.85-2.50=0.85x

26.35=0.85x

x=26.35/0.85

x=31

According to this, the answer is that the gifts weighed 31 pounds.

6 0
3 years ago
Select the pair(s) of ratios that form a proportion.
xxMikexx [17]

Answer:

no more cuss words guys

Step-by-step explanation:

5 0
3 years ago
The amount of sales tax varies directly with the cost of the purchase. If the sales tax is $3.80 on a purchase of $76 what would
polet [3.4K]

Answer:

The sales tax is equal to \$2.3

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

Let

y-----> the cost of the purchase

x ----> the sales tax

step 1

Find the value of k

For y=76, x=3.80

substitute

k=y/x

k=76/3.8

k=20

The linear equation is equal to

y=20x

step 2

what would be the sales tax on a purchase of $46

For y=46, x=?

substitute in the equation

46=20x

x=46/20

x=\$2.3

7 0
3 years ago
Read 2 more answers
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