Help PLEASE I AM GOING TO FAIL MY CLASS

Answer:

Let's start by using variables to represent the ages of the three people:

Let L be Liz's age.

Let D be Debbie's age.

Let F be Freya's age.

From the problem, we know that Liz's age is two-thirds of Debbie's age, so we can write:

L = (2/3)D

We also know that Debbie's age is half of Freya's age, so we can write:

D = (1/2)F

To find the ratio of Liz's age to Freya's age, we need to express Liz's age and Freya's age in terms of a common variable. Since we have an equation relating Debbie's age to Freya's age, we can use that as the common variable. From the equation D = (1/2)F, we can solve for F in terms of D:

F = 2D

Now we can substitute this expression for F into the equation for Liz's age:

L = (2/3)D = (2/3)(1/2)F = (1/3)F

So Liz's age is one-third of Freya's age. The ratio of Liz's age to Freya's age is therefore 1:3.

Answer:

1. 193.2 in³

4. 628.32 ft³

Step-by-step explanation:

For the rectangular prism, just find the area of each individual side and add. For the cylinder, just do πr²×h, with r being the radius and h being the height.

Answer: 1, 2, 3, 4, 6, 12

Step-by-step explanation:

Factors is what makes the number by multiplication

so 1 x 12 is 12,

2 times 6 is 12

3times 4 is 12

Answer:

31. False

32. True

33. True

34. True

Step-by-step explanation:

31. False ==> x=x, so if you add 1 to one side, you have to add one to the other side. Hence, x+1\(\neq\)x

32. True  ==> 3=1+2. Hence, 3+x=1+2+x

33. True:

98n=(100 - 2)n

98*n=(100 - 2)*n

98*n=98*n √

34. True ==> 8+x=x+8  according to Symmetric Property of Equality

Answer:ps=3.4

Step-by-step explanation:

Answer:

Answer:ps=3.4

Step-by-step explanation:

Answer:

287.50

Step-by-step explanation:

you have to take 57.50 divided by 3 take your answer and multiply by 15 and then you will get or close to 287.50

Answer:

69

Step-by-step explanation:

do you need the explanation

Answer:

1/2 half of them are blondies

Step-by-step explanation:

Answer:

Step-by-step explanation:

the answer is 1/2 half of them are blondies

By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042

Answer:

By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042

Step-by-step explanation:

Answer:

The volume of the steps is:

Step-by-step explanation:

Remember that the volume regularly is:

There are many forms to solve this exercise, but I'll show you two:

1. Imagine that aren't steps but a big solid, then its volume would be:

Now you can subtract the volume of a small solid with measures 30 cm * 30 cm * 120 cm (where is the blank for the step):

Now you subtract:

2. The building steps are formed by three solid with volume 30 cm * 30 cm * 120 cm, so:

Answer:

except B all are correct

Step-by-step explanation:

by using Pythagoras theorem you can find it

for A 169=169

for C 841=841

for D 1225=1225

sorry for camera picture

I think it may help you

Answer:

x=6

Step-by-step explanation:

or,5-x+6=5

or,11-x=5

or,11-5=x

or,x=6

Answer:

No solution

Step-by-step explanation:

Yes:  no solution.

Why:  look what happens if you subtract 6 from both sides:  you get:

| 5-x l=5 - 6 = -1

The absolute value function is never less than 0, so there is no x value that makes | 5- x l= -1 true.

Answer:

4 3/4 ths make up 3

4 x 3/4th= 3

Answer:

D.

Step-by-step explanation:

You got the answer right it D

(0.03) multiplied by (0.004) is 0.00012

Multiply 3 by 4 and add all the zeros together

So 0.00012

Answer:

The answer is b. 72.24

Step-by-step explanation:

86-20%= 68.80

68.80+5%=72.24

Percent is given by :

\(Total .\frac{Percent}{100} = equivalent number to percent\\ 86.\frac{20}{100} =17.2\\86-17.2=68.8\\86.\frac{5}{100} =4.3\)

Total sale will cost 68.8+4.3=73.1 usd

The answer is A

PLEASE MARK ME AS BRAINLIEST

Answer: 1. a. 15     b. 11     c. 2     d. 7     e. 5.5

2.  Stem:                   Leaf:

        1                           9

        2                         5, 9

        3                        3, 3, 8

        4                        0, 7, 9

        5                          4, 5

        6                           1, 5

        7                           2, 7

        8                             1

3. a. 13 inches        b. I'm pretty sure that it is the second quarter because there is more snow.           c. The first quarter because it's section is more spread out among the numbers.

Step-by-step explanation:

Answer:

-9

Step-by-step explanation:

When multiplying a negative with a positive you will always get a negative a just multiply the rest coming out to, -9.

Answer:

-3 x 3 = (-3) +(-3) + (-3)

final answer is -9

Answer:

a= 2

Step-by-step explanation:

2 x 2=4

7-4=3

Answer:

a=2

Step-by-step explanation:

2xa(2)= 4

7-4= 3

yeah boiiiiii

Answer:

Step-by-step explanation:

Let's start by finding the sum of the list of nine numbers, which we can then use to find the value of the remaining two numbers in the list:

Sum of the nine numbers = mean * number of numbers = 17 * 9 = 153

Let the three modes be a, b, and c. Since they are modes, each of them must appear at least twice in the list.

Let's assume that the numbers in the list are arranged in non-decreasing order. Then we have:

a ≤ b ≤ c

Since a, b, and c are modes, each of them must appear at least twice in the list. We have three cases to consider:

Case 1: Each of a, b, and c appears exactly twice in the list.

In this case, the remaining three numbers in the list are:

x1 = a + 4

x2 = b + 1

x3 = c - 8

We know that x1, x2, and x3 are distinct and not modes of the list. Therefore, they must be among the six numbers in the list that are not equal to a, b, or c. Let's call these numbers d, e, and f, where:

d ≤ e ≤ f

Then we have:

a + b + c + x1 + x2 + x3 + d + e + f = 153

3(a + b + c) + 3(d + e + f) = 153 + x1 + x2 + x3

Since x1, x2, and x3 are distinct and not modes of the list, we have:

x1 > c

x2 > b

x3 < c

Therefore, we can write:

x1 = c + k1

x2 = b + k2

x3 = a + k3

where k1, k2, and k3 are positive integers.

Substituting these expressions into the equation above, we get:

3(a + b + c) + 3(d + e + f) = 153 + a + b + c + k1 + k2 + k3

Simplifying, we get:

2(a + b + c) + 3(d + e + f) = 153 + k1 + k2 + k3

Since k1, k2, and k3 are positive integers, the right-hand side of this equation is at least 3. Therefore, we have:

2(a + b + c) + 3(d + e + f) ≥ 156

We want to find the value of 3(a + b + c), so let's isolate this term:

3(a + b + c) = 2(a + b + c) + (a + b + c)

Since the left-hand side is three times the sum of a, b, and c, and the right-hand side involves the sum of a, b, c, d, e, and f, we need to express d, e, and f in terms of a, b, and c.

From the inequality a ≤ b ≤ c, we have:

a + k3 ≤ b + k2 ≤ c + k1

Adding 4 to the first inequality, we get:

a + k3 + 4 ≤ b + k2 + 4 ≤ c + k1 + 4

Adding -8 to the second inequality, we get:

a + k3 + 4 ≤ c + k1 - 4 ≤ b + k2

Therefore, we can choose d = a + k3 + 4, e = c + k1 - 4, and f = b + k2. Then

Answer:

Shrink triangle ABC three times smaller than it is now, and make sure that point P is in the middle.

Step-by-step explanation:

Hope this helps!

Answer:

Make triangle ABC three times smaller than it is now, and also make sure that point P is in the middle at the end.

Considering area (A) of garden as 30 square feet:

30 = x(2x+7)

Now we need to expand it:

x(2x+7) = 2x^2 + 7x

2x^2 + 7x = 30

Adding this into an Algebra calculator gives us 5/2 or 2.5

So x = 2.5

To prove this:

2(2.5) + 7 = 12

14 * 2.5 = 30

Answer:

Yes

Step-by-step explanation:

It's 12/5 or also 2.4

Answer:

yes

Step-by-step explanation:

remember how to do fraction operations :

a/b / c/d = a×d / b×c

that is why you can also say it is the same as the multiplication with the upside-down fraction

a/b / c/d = a/b × d/c = a×d / b×c

in your case here

4/5 / 1/3 = 4/5 × 3/1 = 12/5

and that is definitely greater than 1.

Answer:

They should be more to the question but if they aint it should be B

Step-by-step explanation:

Answer:

499.2

Step-by-step explanation:

10.4x6x8

Step-by-step explanation:Step-by-step explanation:    Surface area of triangular prism = 2A + PH.

                                               Lateral surface of a triangular prism = Length × (a + b + c)  

i hope it helps u :-)

Answer:

Step-by-step explanation:

Area of triangle = bh/2

A = 4*5/2

A = 10 cm sq

A of 2 triangles = 10*2 = 20 cm sq

Now, Area of 1 rectangle = lb --> 10*5 = 50 cm sq

A of 3 rectangles = 50*3 = 150 cm sq

Now, LSA = 150 cm sq. (excluding the triangles)

TSA = A of tr. + A of rec. = 20 + 150 = 170 cm sq

Hope it helped. Pls mark me the BRAINLIEST! Don't fool pls

Answer:

607.75 cm3

Step-by-step explanation:

v = L*w*h

8.5 * 5.5 * 13 = 607.75

607.75 cm3

Answer:

V= 8.5(5.5)(13)

V = 607.75 cubic inches

Step-by-step explanation:

Volume of a right rectangular prism is V=lwh where l is length, w is width, and h is height.