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
lorasvet [3.4K]
3 years ago
13

HELP PLEASE

Mathematics
2 answers:
crimeas [40]3 years ago
8 0

Let Jeff's age = x and Ben's age = x - 9.

(x + 10) + (x -9 + 10) = 67

x + 10 + x + 1 = 67

2x + 11 = 67

2x = 56

x = 28

x - 9 = 28 - 9 = 19

Jeff is 28 years old, and Ben is 19 years old.

diamong [38]3 years ago
5 0
If Jeff is x years old, Ben is x - 9 years old.

Ten years later, Jeff would be x + 10 years old and Ben would be (x - 9) + 10 years old.

x + 10 + (x - 9) + 10 = 67
2x + 11 = 67
2x = 56
x = 28

Jeff is 28 right now and Ben is 19 right now.
You might be interested in
Four students were asked to label angles in pairs of triangles. Their drawings are shown below. Tatyanna Triangle A B C. Angle B
valentina_108 [34]

Answer:

Anders

Step-by-step explanation:

7 0
3 years ago
8,595 ÷ 24 answer please
MatroZZZ [7]

Answer:

358.125

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
parker correctly answered 70% of the questions on his math test. If he answered 35 questions correctly, how many questions were
Alexandra [31]

Let the total number of questions in the math test be defined by the variable x.

Now, we know that Parker correctly answered 35 questions. These 35 questions make 70% of the total number of questions on his math test.

The information we have above can be expressed as an equation given below:

70% of x=35

This can be rewritten as:

\frac{70}{100}x=35

Thus, to find the total number of questions we will have to isolate x.

\therefore x=\frac{35\times 100}{70}=50

Therefore, there were a total of 50 questions in the math test.

4 0
3 years ago
Read 2 more answers
a square dance set requires 4 couples 8 dancers with each couple standing on one side of a square. There are 250 people at a squ
sveta [45]

Given:

1 set requires 4 couples 8 dancers.

Total number of people at a square dance = 250.

To find:

The greatest number of sets possible at the dance.

Solution:

We have,

Total people = 250

1 set = 8 people.

\text{Number of possible sets}=\dfrac{\text{Total people}}{\text{People required for 1 set}}

\text{Number of possible sets}=\dfrac{250}{8}

\text{Number of possible sets}=31.25

Number of possible sets cannot be a decimal or fraction value. So, approx. the value to the preceding integer.

\text{Number of possible sets}\approx 31

Therefore, the number of possible sets at the dance is 31.

7 0
2 years ago
Estimate the instantaneous rate of change of P(t) = 2t² + 3 at the point t = – 3
elena55 [62]

Step-by-step explanation:

2t² + 3

2 x 9 + 3

18 + 3

21 is instanous rate

3 0
2 years ago
Other questions:
  • In the least-squares line y = 5 − 9x, what is the value of the slope?
    14·2 answers
  • PLEASE HELP ASAP 30 POINTS.
    14·2 answers
  • a person invests 9000 dollars in the back. The back pats 4.75% interest compounded quarterly. To the tenth of a year, how long m
    11·1 answer
  • <img src="https://tex.z-dn.net/?f=32%20-%2010%20%3D%2024y" id="TexFormula1" title="32 - 10 = 24y" alt="32 - 10 = 24y" align="abs
    8·1 answer
  • Sharon has some one-dollar bills and some five-dollar bills. she has 14 bills. the value of the bills is $30.
    9·1 answer
  • Which is the volume of a sphere with diameter<br> 50 cm?
    6·2 answers
  • Sam bought an $85.00 jacket for 40% off of the regular price. How much
    12·1 answer
  • ABC ≃DEF. Find the lengths of the given sides
    7·1 answer
  • 5 Mina bought 472 pounds of cheddar
    7·2 answers
  • C) A manufacturer is making 100 times as many bows as Tess to sell in stores nationwide.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!