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GenaCL600 [577]
3 years ago
8

What is 4.5a+7+3.5a+2

Mathematics
1 answer:
Nitella [24]3 years ago
3 0

Answer:

8a+9

Step-by-step explanation:

You have to add the like terms.

4.5a+7+3.5a+2

4.5a+3.5a=8a

7+2= 9

8a+9

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Y=-x+7 y=2x+1 solve using equations
777dan777 [17]

Answer:

x=6,y=13

Step-by-step explanation:

Eliminate the equal sides of each equation and combine.

x+7=2x+1

Solve x+7=2x+1

x=6

Evaluate yy when x=6

y=13

The solution to the system is the complete set of ordered pairs that are valid solutions.

(6,13)

The result can be shown in multiple forms.

Point Form:

(6,13)

Equation Form:

x=6,y=13

3 0
3 years ago
Determine if each pair of rates are equivalent.<br> $36 for 4 baseball hats; $56 for 7 baseball hats
Mnenie [13.5K]
No because if you dive 36 by 4 it 9 and 56 divide by 7 is 8
7 0
3 years ago
What goes on the first blank tick mark?
Lubov Fominskaja [6]

Answer:

24

Step-by-step explanation:

The number line should read 18, 24, 30, 36, 42. There is a spacing of 6 units between each tick mark.

Good luck.

Hope this helps!

7 0
3 years ago
Which formula can be used to describe the sequence? f(x) = 1.2(2.5)x – 1 f(x) = 2.5(1.2)x – 1 f(x) = 1.2(2.5)x f(x) = 2.5(1.2)x
Dennis_Churaev [7]

The formula which used to describe the sequence is f(x)=1.2(2.5)ˣ⁻¹.

The given sequence is 1.2,3,7.5,18.75.

In geometric series, the ratio of two consecutive terms remains the same and this ratio is known as common ratio. a₁ is the first term of a geometric sequence and r is the common ratio, then the general term of the geometric sequence is of the form:

f(x)=a₁⋅rˣ⁻¹.

In the given sequence, a₁=1.2, a₂=3, a₃=7.5 and a₄=18.75.

Find the common ratio by

r=(aₙ₊₁)÷aₙ

r=a₂÷a₁

r=3÷1.2

r=2.5

Substitute the values in the general formula of geometric sequence.

f(x)=(1.2)(2.5)ˣ⁻¹

Hence, the formula which used to describe the sequence 1.2,3,7.5,18.75 is f(x)=(1.2)(2.5)ˣ⁻¹.

Learn more about Geometric Sequence from here brainly.com/question/1509142

#SPJ4

8 0
2 years ago
A 6 pack of undershirts cost $13.98 . This is $3.95 more than buying 6 individual shirts. If each undershirt cost the same amoun
xz_007 [3.2K]
I got about $1.67 per shirt
4 0
3 years ago
Read 2 more answers
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