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
jarptica [38.1K]
3 years ago
9

Maggie's brother is 6 years younger than four times her age. The sum of their ages is 69.

Mathematics
2 answers:
Tomtit [17]3 years ago
6 0

Answer:

15

Step-by-step explanation:

If Maggies age is, for example, x, we can say that her brothers age is 4x-6. We know from the problem that Maggies age (x) plus her bothers age, (4x-6) is 69. So,

4x-6+x=69

5x-6=69

5x=75

x=15

So, Maggie is 15.

Airida [17]3 years ago
5 0

Answer: Maggie is 15 years old

Step-by-step explanation:

69 = (4m - 6) + m     --- get an equation

69 - m = 4m - 6        --- lets subtract  m from both sides first

75 - m = 4m              --- add 6 on both sides

75 = 5m                    --- add m on both sides

15 = m                       --- divide by 5 on both sides

m = 15, so Maggie is 15 years old

Let's check:

69 = (4(15)-6) +15

69 = (60 - 6) + 15

69 = 54 + 15

69 = 69

You might be interested in
A postage stamp has a area 1160mm^2. About how long is each side ?
Savatey [412]
Each side is about 290mm long
4 0
3 years ago
What is the y intercept of a line that has a slope of -3 and passes through the point (2,7)
Tom [10]
Y = mx + b
slope(m) = -3
(2,7)...x = 7 and y = 2
now we sub and fund b, the y int
2 = -3(7) + b
2 = -21 + b
2 + 21 = b
23 = b <== ur y int
5 0
3 years ago
Evaluate the numerical expression. − 1 3 − (− 4 9 )
notka56 [123]
Two negatives make a positive so, -13 - (-49) equals -13 + 49, or 49-13, they are all the same thing, all equal to 36. 
6 0
3 years ago
Express it in slope-intercept form.
natka813 [3]

Hey there! :)

Answer:

y = 1/4x - 3.

Step-by-step explanation:

Use the slope-formula to find the slope of the line:

m = \frac{\text{rise}}{\text{run}} = \frac{y_2 - y_1}{x_2 - x_1}

Plug in two points from the line. Use the points (-4, -4) and (0, 3):

m  = \frac{-3 - (-4)}{0 - (-4)}

Simplify:

m = 1/4.

Slope-intercept form is y = mx + b.

Find the 'b' value by finding the y-value at which the graph intersects the y-axis. This is at y = -3. Therefore, the equation is:

y = 1/4x - 3.

7 0
3 years ago
What are some of the reasons for Venus’s high temperatures?
Tems11 [23]

Answer:

As sunlight passes through the atmosphere, it heats up the surface of Venus. Most of this heat cannot escape back into space because it is blocked by the very thick atmosphere of Venus. The heat becomes trapped and builds up to extremely high temperatures

Step-by-step explanation:

im not sure if that is what you are looking for but there

7 0
3 years ago
Other questions:
  • Cameron used 1 3|4 ounces of hydrochloric acid in one experiment. She used 2 3|8 ounces of the acid in a second experiment. How
    9·1 answer
  • You deposit $2000 in an account earning 4% interest compounded monthly. How much will you have in the account in 10 years?
    12·1 answer
  • Factor this expression completely and then place the factors in the proper location on the grid. Note: Place factors alphabetica
    15·1 answer
  • Mr.wilson wrote the fuction f(x)=7x-15 on the chalkboard.What is the value of this function for f(6)?
    7·1 answer
  • Wanni cycled 6 km from her house to the school at a uniform speed, v km/h. If she increased her speed
    11·1 answer
  • 13x-126=162+5x what is the answer to this equation
    13·2 answers
  • Please help! <br><br> Given:<br> AB = BC <br><br> ADB = <br> a. 30<br> b. 37.5 <br> c. 60
    11·1 answer
  • The Magic Carpet charges $90 for installation and $9 per square yard of carpeting. If the total cost to carpet an office is $810
    5·1 answer
  • Factor the expression: 6a + 24
    7·2 answers
  • A groundhog starts out in its burrow 6.2 feet below the surface of the ground. It digs straight up at a rate of 0.8 feet per
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!