Answer:
-4.5
Step-by-step explanation:
A rational number is a number made by dividing two integers. An interget is a number that can be represent without a fraction.
A) -4.5=-9/2. Is a negative AND rational number.
Lez earns $9.28 per hour at her part -time job. She works 5.5 hours on saturday. How much money does lex earn?
Answer:
51.04 ı think
Step-by-step explanation:
Answer:
she makes 51.04
Step-by-step explanation:
Abigail invites her friends over for a pajama party. She bought 12 tubs of popcorn for her friends. Her brother, Aiden took away a few tubs of popcorn for his friends. If 5 tubs of popcorn remain, how many tubs did Abigail share with her friends?
Answer:
7 tubs
Step-by-step explanation:
aiden took "x" tubs
remaining tubs=5
12-x=5
x=12-5
x=7
Answer:
Step-by-step explanation:
FrEe PoInTs ThE sTrUgGlE iS rEaL bRo
A bag contains:
• 7 red marbles
• 5 blue marbles
.6 green marbles
• 3 black marbles
• 5 yellow marbles
A marble will be drawn from the bag and replaced 100
times. What is a reasonable prediction for
the number of times a red or yellow marble will be
drawn?
Answer:
5/7
Step-by-step explanation:
T-shirts are 3 for $18. Tia bought 4 T-shirts. How much did she spend?
Answer:
24$ I think I multiplied 6 times 4
Jeffery walked 1/3 mile on Monday and jogged 4/5 mile on Tuesday. How far did he wal and jog on Monday and Tuesday combined
Answer:
17/15
Step-by-step explanation:
Find the GCF of the denominators
15
Convert the fractions
1/3 ---> 5/15
4/5 ---> 12/15
Add.
12/15 + 5/15 = 17/15
2
It takes Nathan 4 minutes to solve 3 math problems. Choose a ratio tool to determine how long will it take Nathan to solve 12 math problems.
Answer: since 4mins->3math prob.
then 12/3=4 and 4x4=16
It will take him 16 minutes to solve 12 math problems
Step-by-step explanation:
What is 106% of = $7.95
Answer:
8.427
Step-by-step explanation:
7.95/x=100/106
(7.95/x)*x=(100/106)*x
7.95=0.94339622641509*x
(0.94339622641509) to get x
7.95/0.94339622641509=x
8.427=x
x=8.427
106% of 7.95=8.427
a line that includes the points (-1,-2) and (a,-10) has a slope of 4. What is the value of a?
A university health services physician is concerned about how much sleep freshmen are getting. She asks a simple random sample of 50 students if they got at least 8 hours of sleep the previous night. Then she constructs a 95% confidence interval for the true proportion of all freshman college students who got at least 8 hours of sleep the previous night
Answer:
c
Step-by-step explanation:
If the level of confidence falls to 90%, the length will likewise fall.
What is a Confidence interval?A confidence interval (CI) is a range of values that, with a particular level of certainty, is likely to encompass a population value. A population means that sits between an upper and lower interval is frequently stated as a percentage.
Let p be the proportion of students who gets at least 8 hours of sleep the previous night.
here, Sample size = n = 50
the 95% confidence interval for true proportion is,
P ± Zₐ/₂ * [tex]\sqrt{P{\frac{1-P}{n} }[/tex]
P ± 1.96 * [tex]\sqrt{P{\frac{1-P}{50} }[/tex]
95% confidence length = 2 *P ± Zₐ/₂ * [tex]\sqrt{P{\frac{1-P}{n} }[/tex]
= 2 * 1.96 * [tex]\sqrt{P{\frac{1-P}{50} }[/tex] = 3.92 * [tex]\sqrt{P{\frac{1-P}{50} }[/tex]
For 90% confidence length = 2 *P ± Zₐ/₂ * [tex]\sqrt{P{\frac{1-P}{n} }[/tex]
= 2 * 1.645 * [tex]\sqrt{P{\frac{1-P}{50} }[/tex] = 3.29 * [tex]\sqrt{P{\frac{1-P}{50} }[/tex]
Therefore, if the confidence level decreases to 90% then the length will also decrease.
Learn more about confidence intervals here:
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F)-5y=BY
y=
F) check
Answer:
y=b+5f
Step-by-step explanation:
I think that's the answer
How does the size of the product change from problem to problem?
William went shopping for a new phone because of a sale. The store was offering a 15% discount. If the price on the tag was $41, what would be the price after the discount but before tax, to the nearest dollar and cent?
Answer: $34.85
Step-by-step explanation: $41 x 15%= 34.85 before tax
A rectangle measures 3 1/4 inches by 3 3/4 inches. What is the area
Answer:
12.1875 or 195/16 or 12 3/16
Step-by-step explanation:
All you must do is multiply them by each other
hope this helps
Answer:
12.19 inches
Step-by-step explanation:
please mark brainliest
help me with this math quiestion its the picture below
Answer: 6 5/7
Step-by-step explanation:
The price of a technology stock was $9.63 yesterday. Today, the price rose to $9.74. Find the percentage increase. Round your answer to the nearest tenth of a percent.
Write the equation of a line in slope-intercept form if m=2 and b=8.
Answer:
y=2x+8
Step-by-step explanation:
The slope intercept form is:
y=mx+b
with m and b already given, just plug in m and b and you will get your answer.
200 is between what two consecutive whole
numbers?
A.
14 and 15
B.
15 and 16
C.
19 and 20
D.
39 and 40
E.
99 and 100
A runner is preparing for a marathon that is cut into 5 equal sections. The marathon is 42.95 kilometers long. How long is each section of the marathon?
214.75 km
21.475 km
8.59 km
0.859 km
Answer:
you put ht b
Step-by-step explanation:
which number is a solution of the inequality c>5? Use the number line to help answer the question.
Answer:
Step-by-step explanation:
https://brainly.com/question/22157981
Anyone know this please I really need help
A) −10 − 13 − 17 − (−40)=
B) 111 − (31 + 78) − 7 + 14 =
Answer:
A) 0
B) 9
Step-by-step explanation:
A) −10 − 13 − 17 − (−40) [B.E.D.M.A.S rule] (First bracket)
= - 10 - 13 - 17 + 40
= 40 - 10 - 13 - 17. (Then subtraction)
= 40 - 40
= 0 (Ans)
B) 111 − (31 + 78) − 7 + 14 [B.E.D.M.A.S rule] (First bracket)
= 111 − 109 − 7 + 14. (Then addition)
= 111 + 14 - 109 - 7
= 125 - 116. (At last subtraction)
= 9 (Ans)
You had a 78% the first nine weeks and a 84% the second nine weeks. What is the percent increase? Round to the nearest tenth.
Answer:
70 percent?
Step-by-step explanation:
I hope this helps:)
A cone has a volume of 350 cubic meters. The area of the baseis
70 square meters. What is the height of the cone?
Answer:
The height is 15
What type of angles are 5 and 4
Answer:
show us a pic of the triangles
Step-by-step explanation:
Answer:
repost no pic
Step-by-step explanation:
Nora made 15 gallons of lemonade for a community picnic. She served 100 pints to the people. How many pints are leftover? Please help!
Answer:
There are 8 pints to a gallon so she makes 120 gallons, and since she served 100 pints then there are 20 pints left over.
Brainliest please?
Can someone give me an example of substitution
Answer:
Substituton is like being a back up to anything and for anuone
find the measurement of the question mark. please help image included.
9514 1404 393
Answer:
45°
Step-by-step explanation:
The base angles in any isosceles triangle are congruent.
? = 45°
__
The acute angles in any right triangle are complementary.
? = 90° -45° = 45°
__
However you decide to think about it, you get ? = 45°.
Question
Find the slope of the line
Slope - m
Enter your answer as an integer or as a reduced fraction in the form A/B,
Check Answer
Answer:
m=-5/2
Step-by-step explanation:
Two points on the line are (-2, 1) and (0, -4).
So, we have to use the expression Δy/Δx to find the slope.
So, (1-(-4))/(-2-0)=5/-2=-5/2.
The slope of the line is -5/2
Here,
In the graph,
Two points on the line are (-2, 1) and (0, -4).
We have to find the slope of graph.
What is Slope?
A measure of its steepness is called the slope.
Now,
Two points on the line are (-2, 1) and (0, -4).
So, we have to use the formula of slope to find the slope.
Hence,
[tex]m = \frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
So, [tex]m = \frac{-4-1}{0-(-2)} = \frac{-5}{2}[/tex]
Therefore, The slope of the line is -5/2.
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Gavin invested $350 in an account paying an interest rate of 4.7% compounded continuously. Assuming no deposits or withdrawals are made, how long would it take, to the nearest tenth of a year, for the value of the account to reach $890?
Answer:
Gavin will have to invest his money for 20 years to reach that sum of money.
Step-by-step explanation:
Given that Gavin invested $ 350 in an account paying an interest rate of 4.7% compounded continuously, assuming no deposits or withdrawals are made, to determine how long would it take to the nearest tenth of a year for the value of the account to reach $ 890 se you must perform the following calculation:
890 = 350 x (1 + 0.047 / 365) ^ X x 365
X = 20
Thus, Gavin will have to invest his money for 20 years to reach that sum of money.
is 0.23 or 2.3% greater?
Answer:
0.23
Step-by-step explanation:
If you convert 0.23 into a percent, it becomes 23%, which is more than 2.3%.
Hope that helps!
-Sabrina