Answer:
42 11/12
Step-by-step explanation:
9 2/3 x2 + 12 1/4 x2
=18 2/3+24 1/4
=42+11/12
- 5
4
=
2x - 3
5x -5
Answer:
x = 49/33
Hope this helps you! Even though there's no explanation... (I'm really bad at explaining, I'm just good at doing...)
ASAP PLEASE!!!!!!!!!!!
Alexis borrows money to buy a new phone. She plans to pay back $301 in 7 months by paying the same amount each month. The total amount she needs to pay back is $645.
7 301
x 645
If she pays the same amount each month, how many months will it take Alexis to pay back $645? Let x represent the number of months it will take Alexis to pay back $645 at the given rate.
X= ___ months
Alexis decides that she wants to pay back the $645 three months sooner. She will need to pay back more each month than she originally planned. How much does Alexis need to pay each month to pay back the money 3 months sooner?
$___per month
Solve the equation.
5/6b = 1 7/8
Step-by-step explanation:
5/6b=17/8
Cross multiple
40=102b
divide through by 102
b=20/51
1
Bob is building a scale model of his bike. He wants his model to be as long as his bike.
If Bob's bike is 45 inches long, how long will his model be?
His model will be
Jinches long.
Answer:
45 inches long
Step-by-step explanation:
If the scale model is the same length as the bike then the scale model would be 45 inches long because the bike is 45 inches long.
1) Oliver had collected 3/4 of the baseball cards he needs for a full set. What percent of
cards has he collected?
A rectangle and a square have equal areas. The length of the square is 9 cm.The rectangle has width 4 cm. What is the perimeter of the rectangular?
Answer:
Perimeter = 26 cm. Area =
Step-by-step explanation:
The rectangle has a width of 4 cm and the square has a length of 9. cm, so to make them have the same area you make the length of the rectangle 9 cm and the square have a width of 4 cm.
then each shape will have two sides that are 9 cm and two sides that are 4 cm.
Perimeter
9 + 9 = 18
4 + 4 = 8
18 + 8 = 26
the perimeter is 26 cm.
Area
9 x 4 = 36
the area is 36 cm.
Answer:
Width is 4cm and length is 20.25, so perimeter is 48.5
Step-by-step explanation:
Square has same length for each side
Area for the Square 9 x 9 = 81
So find another number that adds up to the area of the square
Area for Rectangle 4 x 20.25 = 81
Width for Rectangle is 4cm and length is 20.25, so perimeter is 48.5
Should be pretty easy if you have a calculator, It'll just take a couple more minutes :D
Simplify: 6√3 + 2√75 - 4√27
do you know the answer?
Answer:
4√3 or Decimal form 6.928203
Step-by-step explanation:
ofc i know the answer, ima different breed
what do you add to 4 1/7 to make 8
work out the value of 10^4
Answer: I have a feeling that the answer is 10,000.
what a ratio of 4 days to 36 hours
Answer:
4:36
24 x 4:36
96:36
8:4
1day = 24 hours
Step-by-step explanation:
Which of the following options best represents the modulus of the fifth roots of √5 + 2i?
Answer:
Answer 3
Step-by-step explanation:
SOMEONE PLEASE HELP QUICKLY!!! I’LL MARK BRAINLIEST
Answer:
x=18.5 y=14.2
Step-by-step explanation:
The unmarked angle for the top/x triangle is 109 (all angles add up to 180, 180-50-21=109)
Use cosine rule:
(a/sina)=(b/sinb)
(x/sin109)=(15/sin50)
(x/sin109)=19.58110934
x=18.51430261
The top-most angle of the bottom/y triangle is 71 (angles on a straight line are 180, 180-109=71)
The righthand angle of the bottom/y triangle is 19 (angles in a triangle add to 180, 180-71-90=19)
Use cosine rule again:
(a/sina)=(b/sinb)
(y/sin71)=(15/sin90)
y/sin71=15
y=14.18277863
Question: What is the the total area of the kitchen floor?
Answer:
56
Step-by-step explanation:
If we split this figure to 2 parts, we figure the area based upon this composite figure.
1 figure is 10x4(rectangle)
the other figure is a 4x4 square (Note we subtract 8 by 4 because we don't want overlapping area)
After that we find the area of those to figures then we add them up
(4x4)+(10x4)
16+40
56
Thank you if you help me
20 POINTS (Again) Helppp Hurry!!
Answer:
6
Step-by-step explanation:
Answer:
m∠5=34°
Step-by-step explanation:
angle 1 is a corresponding angle to angle 5 therefore they are congruent
Juanita's car has a gas mileage of 24 miles per gallon how many miles can Juanita's car travel on 4 gallons of gas
[tex] \frac{?}{?} \times \frac{ \frac{}{?} }{?} [/tex]
please help
Answer:
her car can travel for (24 * 4) miles
which is
96 miles
Answer:
96 miles
Step-by-step explanation:
As it's 24 miles each gallon so , therefore 4 x 24 = 94
132 is what percent of 880
Answer:
Step-by-step explanation:
132 is what percent of 880? = 15.
Hi, can you please help me? 1 Over a period of 3 hours, 190 leaves fell from a tree. At this rate, about how many leaves fell every hour? (Round your answer to the nearest whole number.)
A. 60 leaves per hour
B. 72 leaves per hour
C. 75 leaves per hour
D. 63 leaves per hour
question 2:Mrs. Hill drove a total of 252 miles and used 12 gallons of gasoline. What is the unit rate?
A. 16 miles per gallon
B. 12 miles per gallon
C. 21 miles per gallon
D. 32 miles per gallon
Answer:
D.63 leaves
Step-by-step explanation:
Divide the given number of leaves by the time it took that many to fall
190/3=63.33 which rounds down to 63
Question #2
21 Miles per gallon
Divide the number of gallons by the amount of gas to get miles per gallon.
252/12=21 miles per gallon
Determine whether m(t)=(4/5)^t represents exponential growth or exponential decay. And Identify the percent rate of change.
Answer:
Step-by-step explanation:
exponential decay
rate of change: 20%
I can’t do this I need help awser 1. And 2.
In the diagram, GH bisects ZFGI.
a. Solve for x and find mZFGH.
b. Find mZHGI.
c. Find mZFGI.
(3x - 1)º
a.
.X
(Simplify your answer.)
Answer:
"bisect" means: angle FGH = angle HGI
(3x-3)=(4x-14)
-3+14=4x-3x
x=11
Angle FGH = (3x-3) = 30
Angle HGI = Angle FGH = 30
Angle FGI = 60
Step-by-step explanation:
i think this is right im not sure
WILL GIVE BRAINLIEST
the answer is 162
(to add more letters)
The National Household Travel Survey gathers data on the time of day when people begin a trip in their car or other vehicle. Choose a trip at random and record the time at which the trip started. What probability should replace the "?" in the table?
Time of Day 10PM- 12:59AM 1AM- 5:50AM 6AM- 8:59AM 9AM- 12:59PM 1PM- 3:59PM 4PM- 6:59PM 7PM- 9:59PM
Probability 0.004 0.033 0.144 0.234 0.208 ? 0.123
a. 0.964
b. 0.379
c. 0.752
d. 0.218
Answer:
A probability of 0.254 should replace the "?" in the table
Step-by-step explanation:
We have the probabilities for the time of the day when each person begins a trip, during a 24-hour period.
The sum of these probabilities has to be 100% = 1.
The probabilities are of: 0.004, 0.033, 0.144, 0.234, 0.208, ?, 0.123
Since their sum has to be 1, we can find ?. So
0.004 + 0.033 + 0.144 + 0.234 + 0.208 + ? + 0.123 = 1
0.746 + ? = 1
? = 1 - 0.746
? = 0.254
A probability of 0.254 should replace the "?" in the table
A fifth grade teacher gives homework every night in both mathematics and language arts. The time to complete the mathematics homework has a mean of 30 minutes and a standard deviation of 3 minutes. The time to complete the language arts homework has a mean of 40 minutes and a standard deviation of 4 minutes. Assuming both distributions of homework time are Normally distributed, what is the probability that the average time it takes to complete both homework assignments is greater than 82 minutes?
Answer:
0.82% probability that the average time it takes to complete both homework assignments is greater than 82 minutes
Step-by-step explanation:
When the distribution is normal, we use the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
Math homework:
[tex]\mu_M = 30, \sigma_M = 3[/tex]
Arts homework:
[tex]\mu_A = 40, \sigma_A = 4[/tex]
What is the probability that the average time it takes to complete both homework assignments is greater than 82 minutes?
Here, we have a sum of normal variables. The mean will be the sum of the means, while the standard deviation is the square root of the sum of the variances. So
[tex]\mu = \mu_M + \mu_A = 30 + 40 = 70[/tex]
[tex]\sigma = \sqrt{\sigma_M^2 + \sigma_A^2} = \sqrt{3^2+4^2} = 5[/tex]
This probability is 1 subtracted by the pvalue of Z when X = 82. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{82 - 70}{5}[/tex]
[tex]Z = 2.4[/tex]
[tex]Z = 2.4[/tex] has a pvalue of 0.9918
1 - 0.9918 = 0.0082
0.82% probability that the average time it takes to complete both homework assignments is greater than 82 minutes
Josue has 3 chicken pot pies that he cuts into thirds. How many-size chicken pot pies pieces does he have? 2.
Answer: 9
Step-by-step explanation:
Factor.
8xy - 54x^2 how to solve this
Find the indicated probability. In one town, 71% of adults have health insurance. What is the probability that 4 adults selected at random from the town all have health insurance
Answer:
0.254
Step-by-step explanation:
Given that:
Percentage of those having health insurance = 71%
p = 71 / 100 = 0.71
Number of adults selected at random, n = 4
Probability that 4 selected have health insurance :
p^n = 0.71^4 = 0.25411681
= 0.254
Which is the simplified form of ,-7 +5-12?
구
12
0 - - s12
s12
0 +11
s12
A class fundraiser is earning $7 per car wash w and $4 per cake c sold. The cakes cost $2 to make and the supplies or the car wash cost $1 per car. They will wash less than 50 cars and bake no more than 30 cakes. They want to raise at least $320 to give to a local charity. What system represents this situation
Answer:
w<50
c≤30
6w+2c≥320
Step-by-step explanation:
W stands for the car wash, and C stands for the cakes. Naturally, it would be 7w+4c≥320 but each cake costs $2 to make and each car wash costs $1 per car. This makes the system 6w+2c≥320. They will wash less than(<) 50 cars and bake no more than(≤) 30 cakes. I hope this helped :).
To solve the problem we must know about Expressions.
What is an Expression?In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
Given to us
Earning per car wash = $7
Earning per cake = $4
Cost of supplies per car wash = $1
Cost of cake = $2
They will wash less than 50 cars and
Bake no more than 30 cakes
They want to raise at least $320
Assumption
Let the number of cakes they sold be represented by x, and the number of car washes they did be represented by y.
Profit from Car washProfit from Car wash
= Earning per car wash - Cost of supplies per car wash
= $7 - $1
= $6
Profit from CakeProfit from Cake
= Earning per Cake - Cost of a cake
= $4 - $2
= $2
What is Total Profit?The system that represents profit
$320 = ($6)y + ($2)x
320 = 6y + 2x
Number of Cake they will bake,As it is given that they will not make more than 30 cakes, therefore,
x ≤ 30
Number of Carwashes they will do,As it is given that they will wash less than 50 cars.
y < 50
Hence, the following equations can represent the system,
320 = 6y + 2xx ≤ 30y < 50Learn more about Expression:
https://brainly.com/question/13947055
Can someone help me with this problem? Please!?
Answer:
300 chapter books
Step-by-step explanation:
500/(3+2)=100
100x3=300