Answer:
Step-by-step explanation:
t/4+t/3=1
(3t+4t)/12=1
7t/12=1
7t=12
t=12/7
x=(12/7)hours
Answer:
1/4 + 1/3 = 1/x
Step-by-step explanation:
"Bethany can mow her family’s lawn in 4 hours."
In 1 hour, she does 1/4 of the job.
"Her brother Colin can mow the lawn in 3 hours."
In 1 hour, he does 1/3 of the job.
When they work together, in 1 hour they do 1/4 + 1/3 of the job.
When they work together, they can mow the lawn in x hours.
In 1 hour, they do 1/x of the job. This means that 1/4 + 1/3 must equal 1/x.
1/4 + 1/3 = 1/x
WILL GIVE BRAINLIEST!!!!!!!!!!!
Sally would like to have an average of 92 in her math class. She has completed four assignments with the following grades: 88, 97, 91, 86. What is the lowest grade Sally will need to make on the last assignment to meet her goal?
Answer:
She need to make 98 on the last assignment.
Step-by-step explanation:
Average = 92
x = mark on last assignment
(88 + 97 + 91 + 86 + x) / 5 = 92
To solve for x...multiply 5 on each side
(88 + 97 + 91 + 86 + x) / 5 * 5 = 92*5
This would get of / 5 so you don't need to divide by 5
362 + x = 460
Subtract 362 from each side
x = 98
Write two numbers that multiply to the value on top and add to the value on bottom.
Answer:
10 ,22
Step-by-step explanation:
i think so.................
For problem 5, use the ordered pairs to answer the following question. MUST SHOW YOUR WORK FOR FINDING SLOPE.
HELP i’m struggling pls
a package of 6 toothbrushes cost $3.00 what is the cost for each toothbrush
Answer:
0.50 c
Step-by-step explanation:
Answer: 0.50c
Step-by-step explanation:
divide
Mrs. Hughe’s class has 22 students. Her principal tells her that her class will increase to 30 students. Which equation can be use to find the percent increase, x?
PLEASE SOME ONE ANSWER THIS, PLEASE I NEED HELP!
Answer:
36.37 %
Step-by-step explanation:
i did not see any equations to choose from but this would work:
((30 - 22) ÷ 22) · 100
ASAP PLEASE HELP!!
WILL GIVE BRAINEST!!!
what is the value of x and y
Answer:
Step-by-step explanation:
Please help!!
the function of C gives the percentage of homes using only cell phone service X years after 2004 explain the meaning of each statement.
1. C(10)=35
2. C(x) = 10
3. how is C(10) different from C(x) = 10?
Answer:
Step-by-step explanation:
1. C(10)=35 is the percentage of homes using only cell phone service 10 years after 2004, that is, after 2014.
2. C(x) = 10 is the percentage of homes using only cell phone service x years after 2004. We must find x.
3. how is C(10) different from C(x) = 10?
In C(10), 10 measures time in years and is the independent variable here; C10) is the dependent variable. See (2), above. In C(x), x is the (unknown) independent variable, whereas 10 is the output vaue, the dependent variable.
24, 12, 10, 15, 10, 22, 12
mean:
median:
mode:
range:
3) 14, 9, 20, 5, 17, 13
mean:
15
median:
mode:
range:
4) 21, 15, 16, 25, 13, 18
mean:
median:
mode:
range:
5) 20, 17, 10, 31, 25, 18, 12
mean:
median:
mode:
range:
Answer:
ok
Step-by-step explanation:
7mean
12median
12mode
14range
15 range
no mode
13.5median
13mean
range 12
18 mean
17 median
no mode
no mode
19 mean
18 median
21 range
Please help with number 3 please due today
Please give me the correct answer.Only answer if you're very good at math.ACE,moderators,master answerers,experts,and geniuses please help me.
Answer:
First box: 3, second box: 50, third box: 2
Step-by-step explanation:
5 x 3/5 = 3 (the whole number 5 and the denominator of 5 cancel each other out)
5 x 10 = 50
5 x 2/5 = 2 (the whole number 5 and the denominator 5 cancel each other out)
Write the fraction or mixed number as a percent (7/20)
Answer:
it would be 35% and as a decimal its 0.35
Step-by-step explanation:
hope that helps
Answer:
35%
Step-by-step explanation:
7/20 = 35/100 (you multiply by 5)
35/100 = 35%
Sketch a graph of the function y = (x + 6)(x- 4)
Step-by-step explanation:
eyoaekzgzegkegkzEGKegkzegkzkegzegkzegkzhekzkehskzFegkzkegzgkzejfszfjsjwfJwfUr
A rectangle is 6 feet long and 4 feet wide. If each dimension is increased by the same number of feet, a new rectangle is formed whose area is 39 square feet more than the area of the original rectangle. By how many feet was each dimension increased?
Answer:
Each dimension increased by 3 ft.
Step-by-step explanation:
Area of the original rectangle = 4 * 6 = 24 square feet
Increased dimension = x ft
New length = 6 + x
New width = 4 +x
New area = (6 + x)(4 +x) {Use FOIL method}
= 6*4 + 6*x + x*4 + x*x
= 24 + 6x + 4x + x²
= x² + 10x + 24
New area = 24 + 39
x² + 10x + 24 = 63
x² +10x + 24 - 63 = 0
x² + 10x - 39 = 0
x² + 13x - 3x - 3*13 = 0
x (x + 13) - 3(x + 13) = 0
(x + 13)(x -3) = 0 {Ignore x + 13, as it gives negative value}
x - 3 = 0
x = 3
Use the tape diagram below to help visualize 1/3 being devided by 5
Answer:
Step-by-step explanation:
Reduce the expression, if possible, by cancelling the common factors.
Exact Form:
1/15
Decimal Form:
0.06
GIVING BRAINLIEST, FIVE STARS AND THANKS!! PLS AND TY!!
1. Is the product of 12 and 3/4 more or less than 12? Explain your answer in complete sentences.
2. Is the quotient of 5 and 1/2 greater than or less than 5? Explain your answer in complete sentences.
Answer:
1.) The product of 12 and 3/4 is less than 12. This is because you are multiplying 12 by a number less than 1.
2.) The product of 5 and 1/2 is less than 5, this is because you are multiplying 5 by a number less than one.
Step-by-step explanation:
If multiplied by a number less than one then it will be smaller than original
If multiplied by one will be the same as original
If multiplied by a number greater than one it will be greater than original
Rectangle garage length is 6.6 meters.The width is 6 times shorter then the length. What is the width?
Answer: width = 1.1 meters
Step-by-step explanation:
The length of Rectangle garage =6.6m
Width = 6 times shorter than length
Therefore width = 6.6/ 6
= 1.1 m
Answer:
1.1
Step-by-step explanation:
WHAT IS THE ANSWER PLEASE HURRRRYYYYY
Answer:
1238
Step-by-step explanation:
hindi ko alam ask mo nalang sa mama mo hahaha baka sakaling alam niya yung sahot na tinatanong mo hahaha
Hayley took a total of 9 quizzes over the course of 3 weeks.After attending 7 weeks of school quater,how many quizzes will hayley have taken in total
Answer:
21 quizzes
Step-by-step explanation:
3 quizzes per week 9÷3=3
7 weeks = 3×7 so 21 quizzes
Answer:
21 quizzes
Step-by-step explanation:
What we know:
- Hayley takes 9 quizzes in 3 weeks
What we want to find:
- The number of quizzes Hayley would've taken after 7 weeks
We need to first find the number of quizzes Hayley would take in 1 week and then multiply that number by 7. To find the number of quizzes per week, divide 9 by 3:
9÷3=3
Therefore, every week, Hayley takes 3 quizzes.
Now, we multiply 3 by 7:
3×7=21
Therefore, after attending 7 weeks of school, Hayley would've taken 21 quizzes in total.
I hope this helps!
if n is an integer, what is the sum of the next three consecutive even integers greater than 2n? a. 6n + 12 b. 6n + 10 c. 6n + 4 d. 6n + 8
Answer:
a) 6n + 12
Step-by-step explanation:
Next three consecutive integers are : 2n + 2 , 2n + 4 , 2n + 6
2n + 2 + 2n +4 +2n +6 = 2n+ 2n + 2n + 2 + 4 + 6
= 6n + 12
What is the answer.. to this !
Answer:
A = 3.14
Step-by-step explanation:
A = π[tex]r^{2}[/tex]
A = 3.14 x [tex]1^{2}[/tex]
(diameter = 2)
(remember, radius is half of the diameter)
(radius = 1)
A = 3.14
The diagram shows triangle ABC. Calculate the length of AC
Given:
In triangle ABC, AB=8.2 cm, C=13.5 cm and angle A= 81 degrees.
To find:
The length of AC.
Solution:
According to the Law of Sines:
[tex]\dfrac{\sin A}{a}=\dfrac{\sin B}{b}=\dfrac{\sin C}{c}[/tex]
Using Law of Sines, we get
[tex]\dfrac{\sin A}{a}=\dfrac{\sin C}{c}[/tex]
[tex]\dfrac{\sin (81^\circ)}{13.50}=\dfrac{\sin C}{8.2}[/tex]
[tex]\dfrac{\sin (81^\circ)\times 8.2}{13.50}=\sin C[/tex]
[tex]\sin^{-1}\dfrac{\sin (81^\circ)\times 8.2}{13.50}= C[/tex]
[tex]C\approx 36.86^\circ[/tex]
Using angle sum property, we get
[tex]\angle A+\angle B+\angle C=180^\circ[/tex]
[tex]81^\circ+\angle B+36.86^\circ=180^\circ[/tex]
[tex] \angle B =180^\circ-81^\circ-36.86^\circ [/tex]
[tex] \angle B =62.14^\circ [/tex]
Now,
[tex]\dfrac{\sin A}{a}=\dfrac{\sin B}{b}[/tex]
[tex]\dfrac{\sin (81^\circ)}{13.50}=\dfrac{\sin (62.14^\circ)}{b}[/tex]
[tex]b=\dfrac{13.50\times \sin (62.14^\circ)}{\sin (81^\circ)}[/tex]
[tex]b\approx 12.08[/tex]
Therefore, the length of AC is 12.08 cm.
What is the probability of picking a red marble from a bag containing 4 white marbles and 7 green marbles? *
Answer
7:4
Step-by-step explanation:
You are saving up to buy a new car and deposit $1300 into an account that pays an annual interest rate of 5% compounded quarterly. How much will be in
the account after 6 years?
Answer:
I believe the answer is $1,742.12
Sorry if im wrong!
Find the value of 15/4 ÷ 5/8.
Step-by-step explanation:
15/4 ÷ 5/8
15/4×8/5
3×2
=6
Answer:
6
Step-by-step explanation:
A large rectangular office measures 9 yards by 15 yards. What is the area of the office?
Answer:
135
Step-by-step explanation: 9x15=135
HELP ! In right triangle RST, measure of angle S = 90° and measure of angle R ≠ measure of angle T. If cos(R) = a and sin(R) = b, which is equal to cos(T)/sin(T)?
The choices are
a+b
a-b
b-a
ab
a/b
b/a
Please helppp!! Will mark brainliest
Can someone please help me with this question
Answer:
the graph on the bottom left
Step-by-step explanation:
outliers are points that are away from the cluster of points in the bottom left graph all of the points are grouped up therefor the bottom left graph is the correct answer
Reflections, Rotations, and Translations give two congruent shapes (The Image and Pre-Image)
True
O False