Answers
Answer:
I think the answer is 6 hours. I'm not sure though
Answer:
0.5 or 1/2 of an hour
Step-by-step explanation:
3/10 + 1/5
1/5 is equivalent to 2/10
3/10 + 2/10 = 5/10
5/10 is equivalent to 1/2
Related Questions
Solve the following system of equations: (2 points) 5x + y = 9 3x + 2y = 4 a (−2, 5) b (1, 4) c (2, −1) d (4, −4)
Answers
Y = -1
How to solve -
You can subtract the equations
to do that you have to find a way to get rid of one of the variables.
Easiest way to do this based on these equations is by multiplying one of the equations by -2.
-2(5x + y =9)
From there you’d get
-10 x - 2 y = -18
Now you can add the equations since you already distributed the negative two to the equations.
10 x - 2 y = -18
+
3 x + 2 y = 4
————————
-7 x = - 14
x = 2
To find y, you have to substitute x =2 into one of the equations.
5(2) + y = 9
———————
y = -1
Evaluate if x = 2.5 and y = –14.6.
–x – |y|
1. -17.1
2. -12.1
3. 12.1
4. 17.1
Answers
f (x) = 2x^2 - 4x + 1
Answers
Answer:
tinanong ko rin po yang tanong nyo at ito po ang sagot nilawhat are the values for x and y?
Answers
The gas tank in felizs car is 5/6 full each time he drives to or from work he uses 1/12 of a full tank of gas which equation represent the number of times feliz can drive to or from work with the gas in his tank answers are either 1/10 or 7 or 5/72 or 10
Answers
Answer:
the answer is [tex]\frac{5}{6}[/tex]÷[tex]\frac{1}{12}=10[/tex]
Step-by-step explanation:
Lucy can spend no more than $125 on props for a school play. She has already phurchased costume fabrics that cost $49. Write and solve an inequality to show how much more she spend on props.
Answers
Answer: 49+x≤ 125, where x = Amount she can spend more on props.
Now she can spend no more than $76 on props.
Step-by-step explanation:
Given: Lucy can spend no more than $125 on props for a school play.
I.e. Total money she can spend ≤ $ 125
She already purchased costume fabrics that cost $49.
Let x = Amount she can spend more on props.
Required inequality: 49+x≤ 125
Subtract 49 from both sides, we get
x≤ 76
Hence, now she can spend no more than $76 on props.
help plz its about proportionality
Answers
Answer:7
Step-by-step explanation:no need to explain
Among all pairs of numbers whose sum is 100, find a pair whose product is as large as
possible. (Hint: express the product as a function of x)
Answers
Answer:
99+1
Step-by-step explanation:
Answer:
28936
Step-by-step explanation:
Amanda paid $59.00 for 8 pairs of shorts. At this rate, how much will she pay for 14 pairs of shorts? Round to the nearest hundredth (cent). Example: 5.645 rounds to 5.65.
Answers
Answer:
The amount of 14 pairs of shorts is $ 103.25
Step-by-step explanation:
Given;
amount paid for 8 pairs of short, = $59.00
Then, a single pair short will cost ; $59.00 / 8 = $7.375
Buying at this rate, Amanda will pay the following amonut for 14 pairs.
The cost of 14 pairs of short is given as;
= 14 x $7.375
= $ 103.25
Therefore, the amount of 14 pairs of shorts is $ 103.25
Which of the following lines is parallel to x=4?
y=4
x=2
3y=9
x=y
Answers
El peso promedio de 500 árboles de un vivero es de 70kg y la desviación estándar de 3kg. Suponiendo que los pesos se distribuyen normalmente, encontrar CUANTOS arboles pesan: a) Entre 60 y 75 kg b) Más de 90kg c) Menos de 64kg. D) 64 Kg
Answers
Answer:
Step-by-step explanation:
Resolvemos usando la fórmula de puntuación z
z = (x-μ) / σ, donde
x es la puntuación bruta
μ es la media poblacional = 70 kg
σ es la desviación estándar de la población = 3 kg
a) Entre 60 y 75 kg
Para x= 60kg
z = 60 - 70/3 kg
=-3.33333
Valor de probabilidad de la tabla Z:
P(x = 60) = 0.00042906
Para x = 75 kg
z = 75 - 70/3 kg
= 1.66667
Valor de probabilidad de la tabla Z:
P(x = 75) = 0.95221
P(x = 75) - P(60)
0.95221 - 0.00042906
b) Más de 90 kg
Para x> 90 kg
z = 90 - 70/3
= 6.66667
Valor de probabilidad de la tabla Z:
P (x <90) = 1
P (x> 90) = 1 - P (x <90) = 0
Número de árboles = 500
Por tanto, 500 × 0 = 0 árboles
c) Menos de 64 kg
x <64 kg
z = 64 - 70/3 kg
= -2
Valor de probabilidad de Z-Table:
P (x <64) = 0,02275
Hay 500 arboles
= 500 × 0.02275
= 11.375 árboles
D) 64 kilogramos
x = 64 kg
z = 64 - 70/3 kg
= -2
Valor de probabilidad de Z-Table:
P (x = 64) = 0,02275
Hay 500 arboles
= 500 × 0.02275
= 11.375 árboles
A construction crew has just finished building a road. The crew worked for 2 2/9 days. If they built 2 1/5 kilometers of road each day, what is the total length of road they built.
write your answer as a mixed number in simplest form.
Answers
Answer:
Step-by-step explanation:
2 2/9 * 2 1/5
Change to improper fractions
20 11
---- x ------
9 5
220 / 45 Divide top and bottom by 5 (you could have done this first)
44/ 9
4 8/9
A postage box should weigh 1.0 pound. If there is a 5% error on the weight, what is the range of acceptable weight?
Answers
Answer: 0.95
Step-by-step explanation: 1.0 and 10% is 0.10 so 5% is 0.5 and if u take 0.5 away from 1.0 it’s 0.95
HELPPPPPPPP
4 Renting video games from Store S costs $2.50 per game plus a monthly fee of
$5.00. Renting video games from Store T costs $5.00 per game with no monthly
fee. The monthly cost to rent video games depends on the number of video
games, v, rented. Which equation represents the situation when the monthly cost
at Store S is equal to the monthly cost at Store T?
F 2.5v + 5 = 5v
G 2.5 + 5v = 5v
H 7.5v = 5v
J 7.5v = 10v
Answers
Answer:
it is c
Step-by-step explanation:
because I said it is
Does anyone know the correct choice for this question? If its correct ill mark you as the best answer choice! Please!
Answers
Answer:
H
Step-by-step explanation:
Once graphed, the line passes through (-4,2) while the others do not
What is the solution to n/4 = -12.4?
n = 3.1
n = -3.1
n = 49.6
n = -49.6
Answers
Answer:
n= -49.6
Step-by-step explanation:
49.6 i did this test and got it right
which of these situations does not have quantities that combine to make 0.
A. In the morning, the temperature rises 30 degrees. in the evening, it falls by 30 degrees
B. Hikroko earns $20 working concessions at the football game. she earns $20 as as babysitter
C. A dolphin swims 20 feet straight down from the surface. it then rise 20 feet to reture to the surface
D. A hot air balloon rises 40 feet. it then drops 40 feet to the ground
Hurry please
Answers
Answer:
B. Hikroko earns $20 working concessions at the football game. she earns $20 as as babysitter
Step-by-step explanation:
also the person who keeps deleting all my answers i hope u break your back
Roman solved the equation 5 a + 2 b = 10 for a. His steps are shown below.
1. Subtract 2b: 5 a + 2 b minus 2 b = 10 minus 2 b. 5 a = 10 minus 2 b.
2. Multiply by 5: a = 50 minus 10 b.
Which statement about Roman’s work is true?
I need a quick answer pls!
Answers
Answer:
In step 2, he needed to divide both sides of the equation by 5
Step-by-step explanation:
I'm very positive about this
Hope this helps!!!!!!
Answer:
step 2
Step-by-step explanation:
100 POINTS IF RIGHT AND BRAINLESIT!!!
Answers
Answer: D
Step-by-step explanation: YAY POINTS ITS RIGHT I DID IT ON EDGE
Answer:
The correct answer would be C
explanation:
They are not parallel
For her birthday, Kendra received a gift card in the mail from her grandparents. The gift card was worth $50. Kendra thought, since she had just received other gifts for her birthday, she would wait a while to spend the gift card. Unfortunately, Kendra forgot all about the gift card, and the card loses $5 every month after its date of purchase if it has not been used. If Kendra forgot the card for three months, she lost $______. 15 9 12 10
Answers
Answer:
She lost $15 for three months.
Step-by-step explanation:
The Marquez family drove 191.8 miles for a weekend getaway This took them 2.8 hours. How many miles per hour did the Marquez family average?
Answers
Answer:
68.5 mph
Step-by-step explanation:
191.8 ÷ 2.8 = 68.5
Hunter is trying to save $600 go to summer camp. He already has $150. If he earns $7.50 per hour working at a grocery store, how many hours will he have to work?
Answers
Answer:
60 hours
Step-by-step explanation:
simple,multiply 7.50 and 60 =450 plus 150 =600
Can somebody help pleaseIf a number is a whole number, then it cannot be an
A. irrational number
B. a natural number
C. an integer
D. national number
Answers
Answer:
the answer is A - An irrational number
The weights of 3 puppies at one week old were 6.5 ounces, 7.3 ounces, and 6.4 ounces. Of each puppy gained 2.1 ounces, how much would the puppies weigh?
Answers
Answer:
Puppy 1 = 8.6 ounces
Puppy 2 = 9.4 ounces
Puppy 3 = 8.5 ounces
Step-by-step explanation:
Weights of 3 puppies at one week old were
Puppy 1 = 6.5 ounces
Puppy 2 = 7.3 ounces
Puppy 3 = 6.4 ounces
Each puppy gained 2.1 ounces
Puppy 1 = 6.5 ounces + 2.1 ounces
Puppy 2 = 7.3 ounces + 2.1 ounces
Puppy 3 = 6.4 ounces + 2.1 ounces
New weight
Puppy 1 = 8.6 ounces
Puppy 2 = 9.4 ounces
Puppy 3 = 8.5 ounces
If the puppies each gained 2.1 ounces, the new weight is given above
The length of a rectangle is 10 in more than 5 times the width. The perimeter is
500 in. What is the area?
P=2W+2L
Area=L*W
Area =
Answers
Answer:
50
Explanation
Area=L x w
Area = 10 x 5
50
What is the answer to these questions?
Plz number them 6-8.
This is pt 2 to the question.
Answers
Answer:
6. M=10. And when you distribute the 2 to the terms in the parentheses it means you are multiplying the 2 by each term.
7. X=7
8. The answer is D
A small business borrows $50,000 to get started. Some of the money is borrowed at 9%, some at 7%, and some at 10% simple interest. The total of the annual interest they are charged is $4340, and the amount borrowed at 7% is two times the amount borrowed at 9%. Set up a system of equations to represent the situation, then find the amounts of money (x, y, and z) borrowed at each interest rate.
Answers
Answer: Amount borrowed at 9% = 9,428.57
Amount borrowed at 7% = $18,857.14
Amount borrowed at 10% = $ 21,714.29
Step-by-step explanation:
Formula for simple interest :
I = PRT,
P= Principal, R =rate , T= time
Let x = amount borrowed at 9%.
y = amount borrowed at 7%.
z = amount borrowed at 10%.
i.e. x+y+z= 50000 (i) [Given : amount invested = 50000]
Interest on x = x (0.09)(1) [as P=x, T=1 year, r= 0.09]
= 0.09x
Similarly
Interest on y = y(0.07)(1) = 0.07y
Interest on z = z(0.1)(1)=0.1z
Total interest = 0.09x+0.07y+0.1z = 4340 (ii)
Also, y=2x [given] (iii)
Put y=2x in (i) and (ii), we get
x+2x+z= 50000 ⇒ 3x+z=50000 (iv)
0.09x+0.07(2x)+0.1z=4340 ⇒ 0.09x+0.14x+0.1z=4340
⇒ 0.23x+0.1z=4340 (v)
Multiply 10 on both sides of (v)
2.3x+z=43400 (vi)
Eliminate (vi) from (v)
0.7x=6600
⇒ x= 9,428.57
From (iii), y= 2(9428.57) =18,857.14
From (vi),
2.3(9428.57)+z=43400
⇒ 21685.71+z=43400
⇒ z= 43400-21685.71
⇒ z=21714.29
Hence, Amount borrowed at 9% = 9,428.57
Amount borrowed at 7% = $18,857.14
Amount borrowed at 10% = $ 21,714.29
A rectangular room is 19.7 m by 7.0 m. What is the side length of a square room with the same area as the room?
Answers
Answer:
68.95
Step-by-step explanation:
What is the ordered pair for point A
Answers
Answer:
(-1.5, 2.5)
Step-by-step explanation:
look at x-value and y-value
find difference between -1 and -2 which is 0.5 same goes with y-axia
Jim is baking chocolate chip muffins. He has a total of 7 1/3 cups of chocolate chips. If each batch of muffins uses 2/3 of a cup of chocolate chips, enter the most number of batches of muffins Jim can bake
Answers
Answer:
16
Step-by-step explanation:
The first step to answering a question like this is to turn it into an improper fraction so 7 1/3=24/3. Then divide the numerator by the denominator so 24 divided by 3=8 so 8=1/3. Their is 2/3 so do 8 times 2 which equals 16