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iris [78.8K]
3 years ago
13

3B. To figure out a special number, Tammi’s mother was supposed to double her age and then add 4. Instead, Tammi’s mother added

4 to her age and then doubled that number. Tammi’s mother thought the special number was 80. What was the special number supposed to be?
Mathematics
1 answer:
Rainbow [258]3 years ago
8 0

Answer:

98

Step-by-step explanation:

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20 POINTS!<br> Please help! <br> Algebra 2<br> (There is more than one answer)
Elis [28]

It looks like it's just the second one, but idk. They all seem too specific for a random card guess besides #2.

4 0
3 years ago
I need it rnnn pleaseee
xxMikexx [17]

Answer:

see explanation

Step-by-step explanation:

Calculate the slope m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (8, - 3) and (x₂, y₂ ) = (2, 6)

m = \frac{6+3}{2-8} = \frac{9}{-6} = - \frac{3}{2}

------------------------------------------

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

y = 5 - 2x , that is

y = - 2x + 5 ← in slope- intercept form

with slope m = - 2

3 0
3 years ago
What is the surface area of the prism?
valentinak56 [21]
Surface area of the prism= surface area of the base + surface area of the two triangles + surface area of the two rectangles.

Surface area of the base=(3 yd * 7 yd)=21 yd².
Surface area of the two triangles=2*(3 yd * 4 yd)/2=12 yd².
Surface area of the two rectangles=(7 yd * 5 yd) + (7 yd * 4yd)=35 yd² + 28 yd²=
=63 yd²

Surface of the prism=21 yd² + 12 yd² + 63 yd²=96 yd²

Remember:
surface area of a triangle=(base * height)/2
surface area of a rectangle=base *  height.

Answer: C.96 yd²
8 0
3 years ago
Read 2 more answers
The table shows the outputs, y, for different inputs, x:
quester [9]
Part A:
Yes, the data represent a function because there is at least one x-value for every y-value.

Part B:
When x=6 in the input-output table, y=6 as well. When x=6 in the relation f(x)=2x+16, f(x)=2(6)+16=28. The equation has a greater value when x=6.

Part C:

Set f(x) equal to 40 in the equation:
40=2x+16
Solve for x:
2x=24
x=12
x=12 when f(x)=40
3 0
3 years ago
Perform the following operation
Yuri [45]

Answer:

Step-by-step explanation:

3.8×10^{-5}:8.1×10^3

\frac{3.8 \times 10^{-5}}{8.1 \times 10^3} \\\approx4.69 \times 10^{-9}

8 0
3 years ago
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