1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yulyashka [42]
3 years ago
11

BRAINLIST AND 30 POINTS!

Mathematics
1 answer:
marta [7]3 years ago
8 0

1.b)

Fred has F cards. Bill has B cards. Tim has T cards.

B + F + T = 167

B = 5F

T = 4F - 3

5F + F + 4F - 3 = 167

10F - 3 = 167

10F = 170

F = 17

Fred has 17 cards.

B = 5F = 5(17) = 85

Bill has 85 cards.

T = 4F - 3 = 4(17) - 3 = 65

Tim has 65 cards.

2.a)

length = L

width = W

L = W + 5

perimeter = 2L + 2W = 168

2L + 2W = 168

2(W + 5) + 2W = 168

2W + 10 + 2W = 168

4W = 158

W = 39.5

L = W + 5 = 39.5 + 5 = 44.5

Length = 44.5 inches

Width = 39.5 inches

2.b)

Original rectangle:

width = W

length = 2W

New rectangle:

width = W - 1

length = 2W + 4

perimeter = 198 inches

perimeter = 2L + 2W = 198

2(2W + 4) + 2(W - 1) = 198

4W + 8 + 2W - 2 = 198

6W + 6 = 198

6W = 192

W = 32

L = 2W = 64

width = 32 inches

length = 64 inches

3.a)

Now:

Sam's age = S

John's age = 3S

In 5 years:

John's age = 3S + 5

Sam's age = S + 5

3S + 5 = 2(S + 5)

3S + 5 = 2S + 10

S = 5

Sam's age is 5.

John's age is 15.

This is all I have time for now. Post the rest of the problems in a different post, and I'll try to help later.

You might be interested in
At the candy store, Jonathan bought 1.74 pounds of gumdrops, 2.2 pounds of jellybeans, and 1.38 pounds of licorice. How much did
GenaCL600 [577]

Answer:

5.32 lbs

Step-by-step explanation:

add all of them together, this is common sense math you should know how to do this.

3 0
3 years ago
Read 2 more answers
Consider the functions:
inn [45]

Answer:

The function f(x) was translated right 3 units and up  2 units

Step-by-step explanation:

<em>k </em>= 2, which is denoted as vertical movement

<em>b </em>= -3, which is denoted to horizontal movement

6 0
3 years ago
Parker is having a birthday party. He is inviting 8 of his friends. He wants to give each friends 2 stickers in their goodie bag
ch4aika [34]

Answer:

16

Step-by-step explanation:

8 times 2 equals 16

7 0
2 years ago
Read 2 more answers
What is pi squared as a fraction?
ivolga24 [154]
Π=3.14
Let's start with two digits:

3.14 = 3 14/100

= 3 7/50

= 157/50

would be the approximation for that. Let's add a few more digits:

3.1415 = 3 1415/10000

= 3 283/2000

= 6283/2000
3 0
3 years ago
A survey found that women's heights are normally distributed with mean 62.6 in. And standard deviation 2.5 in. The survey also f
Soloha48 [4]

Answer:

The new height requirements are minimum of 64.1875 inches and maximum of 68.3 inches

Step-by-step explanation:

To exclude the tallest 50% of men and shortest 5% of men, we need to find the critical z-value for a significance level of 0.5 & 0.05 and then solve for x in the z-score equation.

For significance value of 0.5, z = 0

We are given;

μ = 68.3 in

σ = 2.5 in

Thus from z = (x - μ)/σ, we have;

0 =(x - 68. 3)/2.5

0 = x - 68. 3

x = 68.3 inches for men max

Similarly, for significance value of 0.05, z = -1.645

Thus to find x;

-1.645 = (x - 68. 3)/2.5

-4.1125 = x - 68.3

x = 68.3 - 4.1125

x = 64.1875 inches for men min

7 0
3 years ago
Other questions:
  • Help in details please on how to do the graph
    9·1 answer
  • Answer need as soon as possible
    15·1 answer
  • 25 pts What is the rule for a reflection across the origin followed by a translation 9 units to the left and 7 units down?
    8·2 answers
  • What is the ratio for 24 to 16
    5·2 answers
  • Suppose we are interested in bidding on a piece of land and we know one other bidder is interested. The seller announced that th
    12·1 answer
  • PLEASE HELP I ADDED A PIC TOO!
    13·1 answer
  • Can you answer, this is due tonight
    12·1 answer
  • 9/4 = blank divided by 4<br><br> please help- what is blank
    8·2 answers
  • If ;= -7, what is the value of 13?<br> -1<br> i<br> 1<br> -i
    13·2 answers
  • Tell whether the relation is a function. Explain your reasoning.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!