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zhannawk [14.2K]
3 years ago
6

HELP NEEDED

Mathematics
2 answers:
bezimeni [28]3 years ago
8 0
5. Answer: x=7

Step by step solution:
6x+2=44
6x=44-2
6x=42
x=7

6. Answer: 14

Step by step solution:
5x+1=71
5x=71-1
5x=70
x=14

7. x=22

Step by step solution:
3x+1=67
3x=67-1
3x=66
x=22

8. x=27

Step by step solution:
2x=54
x=27
liubo4ka [24]3 years ago
7 0

63

Step-by-step explanation:

2x+54=180

2x=180-54

2x=126

divide each side by two u will get x

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A man sells a type of nut for $7 per pound and a different one for $4.20 per pound, how much of each type should be used to make
qwelly [4]

Answer:

a type nut is 10 pounds

a different one is 14 pounds

Step-by-step explanation:

let a type of the nut be represented by t

Let a different one be represented by d

a type of nut cost $7 per pound

a different one cost $4.20 per pound

The cost of the mixture for 24 pounds = 5.37 * 24

= $128.88

t + d = 24 ........(1)

7t + 4.2d = 128.88 ..........(2)

From equation (1), t = 24 - d

Put t = 24 - d in equation 2

7(24 - d) + 4.2d = 128.88

168 - 7d + 4.2d = 128.88

168 - 2.8d = 128.88

-2.8d = 128.88 - 168

-2.8d = -39.12

d = -39.12 / -2.8

d= 13.97

d = 14 pounds

t = 24 - d

t = 24 - 14

t = 10 pounds

A type nut is 10 pounds. A different one is 14 pounds

5 0
4 years ago
Read 2 more answers
A credit card balance is $452.18. Find the new balance after these things happen: two items costing $26.45 and $15.90 are return
r-ruslan [8.4K]

Answer:

the anwser is 232.33

Step-by-step explanation:

i added all of the things that happened and then toke that number and subtracted that from the main number.

hope this helps

8 0
4 years ago
Amir stands on a balcony and throws a ball to his dog, who is at ground level. The ball's height (in meters above the ground), x
kumpel [21]

Answer:

12m

Step-by-step explanation

If the height of the ball after x seconds be modelled by the equation

h(x)=−(x−2)² +16

The height of the ball at the time it is thrown will be the height at the initial time. At that point that it is initially thrown the time is 0seconds i.e x = 0

To get the height at t x = 0seconds, we will substitute x = 0 into the modeled function to have;

h(0) = -(-0-2)²+16.

h(0) = -(-2)²+16

h(0) = -4+16

h(0) = 12

The height of the ball at the time the ball is thrown is 12m

4 0
4 years ago
Read 2 more answers
How many solutions can be found for the equation 4z 2(z − 4) = 3z 11? none one two infinitely many
Rus_ich [418]

There is only one solution for the equation 4z + 2(z -4) = 3z + 11 because the exponent for the power of z is 1.

<h3>What is an equation?</h3>

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

<h3>What is the Solution?</h3>

A solution is any value of a variable that makes the specified equation true.

According to the given information:

4z + 2(z-4)= 3z+11

Solve the equation,

4z+2z-8=3z+11

6z-3z=11+8

3z =19

z=

Hence,

Number of solution that can be found for the equation 4z + 2(z-4)= 3z+11 is option(2) one

To know more about Equations and Solutions visit:

brainly.com/question/545403

#SPJ4

8 0
2 years ago
Felicia earns $1,200 a month. The table displays her monthly budget. Monthly Budget Expense Amount of Money College Savings $225
Alexxx [7]

Answer:

I want to say its 50%

Step-by-step explanation:

7 0
3 years ago
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