Answer:
C) 21 girls : 9 boys
Step-by-step explanation:
You just have to compare the ratio you're given to the answers and see if the ratios from the answers match up to the ratio you were given. The reason C is the answer is because if you divide by 3 in the ration, it is the same as the ratio you were given, 7:3
What is the measurement of angle x (in degrees)?
Explain how you got your answer.
Clare mixes
2 1/2
cups of water with
1/3
cup of orange juice concentrate.
—————————
How much water would she use for one cup of concentrate? (use a decimal)
—————————
How much water would she use for 10 cups of concentrate? (use a decimal)
Answer:
1. 1 cup of concentrate would use 7.5 cups of water.
2. 10 cups of concentrate would use 75 cups of water.
Step-by-step explanation:
Because 1/3 cup of concentrate is mixed with 2 1/2 cups of water, to find how much water one cup of concentrate would use, you would have to multiply both 1/3 and 2 1/2 (2.5) by 3. Then, you get 1 cup of concentrate equals 7 1/2 (7.5).
To find the answer to the next question, simply multiply by 10.
Elena solved the equation 2(x – 9) = 10 In the
following way. What mistake did she make?
Answer: Subtract 18 on both sides is wrong. Its supposed to be add 18 on both sides.
Step-by-step explanation:
Mrs. Taylor is knitting socks. it takes her 1/4 hour to knit one pair of socks. She has a meeting to go to in 3 1/2 hours.
How many pairs of socks can she knit before her meeting?
Answer:
14 socks.
Step-by-step explanation:
3 1/2 / 1/4
= 7/2 / 1/4
= 7/2 * 4
= 28/2
= 14 socks.
Answer:
14
Step-by-step explanation:
Mrs. taylor can knit 4 socks in an hour, so if she has to go to her meeting in 3 1/2 hours, she should be able to knit 14 pairs of socks. The reason for this is in 3 hours she can knit 12 socks because 4 times 3 is 12. Then, in half an hour she can knit 2 socks because she can knit one pair in 1/4 so in 1/2 it would be 2.
PLEASE HELP!!!!!!!! (Write each decimal as a percent)
0.08
0.39
0.169
0.47
8.53
0.49
5.09
3.21
0.95
0.3
NOW WRITE EACH PERCENT AS A DECIMAL
40%
63%
90%
13%
20%
689%
93%
654%
4%
71%
Answer:
0.08=0.8%
0.39=3.9%
0.169=16.9%
0.47=4.7%
8.53=85.3%
0.49=4.9%
5.09=50.9%
3.21=32.1%
0.95=9.5%
0.3=3%
40%=4.0
63%=6.3
90%=9.0
13%=1.3
20%=2.0
689%=68.9
93%=9.3
654%=65.4
4%=0.4
71%=7.1
Step-by-step explanation:
Hope this helped, Have a Wonderful Day!!
Change each improper fraction to a mixed number.
Enter your answer in simplest form.
2.
62/7
Question 3
1 pts
Round 0.0245 to 2 significant figures. Detailed steps please!
0.025 is your answer ..hope it will help
Luke was out of cereal for breakfast. He walked to the grocery store to buy his favorite, Honey Nut Cheerios. While looking at the cereal, he noticed all the different box sizes and different prices. A giant "Family Size" box contained 14.7 oz and cost $5.99. A small, individual size contained 1.5 oz and cost $1.89. He wanted to get the most "bang for his buck." Which choice is the better buy? In other words, which choice is cheaper per ounce? Which one should he buy and why?
Answer:
The answer is the family size
Step-by-step explanation:
I had to find how much it is per ounce and for the small box it cost $1.25 per ounce and for the family size it cost $0.41 which is less than $1.25 so the answer would be the family size of Honey Nut Cheerios
Answer:
Step-by-step explanation:
I had to find how much it is per ounce and for the small box it cost $1.25 per ounce and for the family size it cost $0.41 which is less than $1.25 so the answer would be the family size of Honey Nut Cheerios
Referring to the figure, the two figures below are similar. Find
the corresponding side for PQ.
a. XY c. SR
b. WZ d. WX
Answer:
there is no picture.
Step-by-step explanation:
You want to measure the length of a ribbon in inches. You only have a centimeter ruler. The length of the ribbon is 15 cm. Is the ribbon longer or shorter than 15 inches? How many inches long is it?
Answer:
Shorter than 15IN, 5.9 or 6 inches
Hope this helps:)
Step-by-step explanation:
The ribbon is shorter than 15 inches, and its length is approximately 5.91 inches.
Given that a ribbon has a length of 15 cm, we need to calculate the length in inches,
To determine the length of the ribbon in inches, we need to convert the length from centimeters to inches.
To convert centimeters to inches, we can use the conversion factor 1 inch = 2.54 centimeters.
The length of the ribbon is 15 centimeters. To convert this to inches, we divide 15 by 2.54:
15 cm / 2.54 cm/inch = 5.91 inches (rounded to two decimal places).
So, the ribbon is shorter than 15 inches.
The ribbon is approximately 5.91 inches long.
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On the map below, city p and city q are 5.5 centimeters (cm) apart. What is the actual distance between city p and city q? 2cm= 35 miles
Answer:
96.25
Step-by-step explanation:
5.5/2=2.75
2.75x35=96.25
Help please help................
Answer:
8×150= RS.1200
Step-by-step explanation:
rate per square metre is 150/- so there are 8m
take 8×150= (final answer).
A family of six goes to the local sandwich shop. All six people order the combination meal, which includes a drink and a sandwich for $6.99. One person thinks the total bill for the family of six will be around $30.00.
Answer:D
Step-by-step explanation:
Brandon swims several times a week in a lake near his house. This past summer, the average water temperature was 18 °C, which is 10% cooler than it was last summer. What was last summer's average water temperature?
Please explain how you got the answer. Will give brainliest to the best explained and correct answer
Answer:
18 x 1.1 =19.8 c
Step-by-step explanation:
Please help me I will give you the briain thing and extra points. (image below) 10/13
Answer: B
Step-by-step explanation:
You have to look at the first number behind the decimal. C and D are wrong because the first numbers behind the decimal are zeros which is less than 3 and 1. A is wrong because .04753 is less than .04792
What number is found in the whole numbers but not in the counting numbers?
Answer:
0
Step-by-step explanation:
Decide whether each table could represent a proportional relationship. If the relationship could be proportional, what would be the constant of proportionality? a. The sizes you can print a photo: width of photo (inches) height of photo (inches) b. The distance from which a lighthouse is visible: height of a lighthouse (feet) distance it can be seen (miles)
Answer:
I'm not sure but I've attched a link that can help you calculate unit rates: https://www.calculatorsoup.com/calculators/math/unit-rate-calculator.php
Step-by-step explanation:
Hope this helps
PLEASE MARK ME BRAINLIEST!
ABC is translated left 3 units to form the image ∆A′B′C′.
What are the coordinates of the vertices of ∆A′B′C′ ?
A′ = ( , )
B′ = ( , )
C′ = ( , )
Answer:
A = (-2 , -1) A’ = (-5 , -1)
B = (2 , -1) B’ = (-1 , -1)
C = (2, 2) C’ = (-1 , 2)
Step-by-step explanation:
Move each coordinate to the left 3 times! You will result in the prime coordinates of the letters!
6/7 2/2 in simple form
Answer:
6/7 simplest form is 6/7
2/2 simplest form is 1/1
Tell me if wrong!
Step-by-step explanation:
PLEASE ANsWer THiS
Question in picture ⬇️
There are two
Answer:
dude you have complicated questions
Step-by-step explanation:
When I round 6396 to 3 significant figures, I get 6400. I was double checking my work and used scientific notation for 6400, which is 6.4*10³, but when I counted the significant figures in scientific notation, I only get 2, which are 6 and 4, but there were supposed to be 3. Anyone can help to explain?
This is one slight annoyance when it comes to sig figs, in my opinion anyway. You did the steps correct. The 639 bumps up to 640, so 6396 rounds to 6400 when rounding to 3 sig figs.
Normally the trailing zeros, ie zeros on the right, are not significant. So 6400 shows only 2 sig figs. What we need to do is draw a horizontal line over the first zero to show that it is significant (while the other zero is not significant)
So you'll write it like this [tex]64\overline{0}0[/tex]
This notation can be problematic when it comes to decimals because it could be easily mixed up with the repeating decimal notation.
When you convert [tex]64\overline{0}0[/tex] to scientific notation, you would get [tex]6.40 \times 10^3[/tex].
In short: [tex]64\overline{0}0 = 6.40 \times 10^3[/tex]
Here the zero is significant because the zero is present in the scientific notation result. Writing [tex]6.4 \times 10^3[/tex] shows 2 sig figs while [tex]6.40 \times 10^3[/tex] has 3 sig figs.
It's similar to how the number [tex]5.7[/tex] has 2 sig figs while [tex]5.70[/tex] has 3 sig figs. While the zero is trailing, having it after a decimal point indicates to the reader that you achieved this level of accuracy.
Answer:
This is one slight annoyance when it comes to sig figs, in my opinion anyway. You did the steps correctly. The 639 bumps up to 640, so 6396 rounds to 6400 when rounding to 3 sig figs.
Normally the trailing zeros, ie zeros on the right, are not significant. So 6400 shows only 2 sig figs. What we need to do is draw a horizontal line over the first zero to show that it is significant (while the other zero is not significant)
So you'll write it like this
This notation can be problematic when it comes to decimals because it could be easily mixed up with the repeating decimal notation.
When you convert to scientific notation, you would get .
In short:
Here the zero is significant because the zero is present in the scientific notation result. Writing shows 2 sig figs while has 3 sig figs.
It's similar to how the number has 2 sig figs while has 3 sig figs. While the zero is trailing, having it after a decimal point indicates to the reader that you achieved this level of accuracy.
on monday 72% of the class ordered lunch. which fraction shows the part of the class that ordered lunch?
The fraction showing the part of the class that ordered lunch is 18/25
What are fractions?A fraction represents equal parts of a whole, by dividing it up into equal partitions.
Each fraction has a numerator and denominator. The denominator represents the total number of parts the whole has been divided into.
Given that, on Monday 72% of the class ordered lunch we need to find the fraction showing the part of the class that ordered lunch,
So, we know that, 72% = 72 / 100
= 36/50 = 18/25
Hence, the fraction showing the part of the class that ordered lunch is 18/25
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PLEASE HELP ME WITH THIS!! I WILL GIVE EXTRA POINTS,AND BRAINLIST IF YOU ANSWER THIS CORRECTY!!
Katie has taken 5 math tests this year. On the first she scored a 75. The third test she scored 10 points more than the first two. The fourth test she scored 95 and the last test she scored 90.
What is Katie's average (mean) math score?
A. 86
B. 84
C. 69
D. 67
E. 65
MAKE SURE YOU EXPLAIN TO!!! THIS IS NOT ALL THE POINTS YOU WILL BE GETTING! THERE WILL BE MOREE!! :))
Answer:
Her average score was 84, add them all up and divide by 5
Step-by-step explanation:
Daniel buys a video game, which is on sale for 30% off the regular price of $69.98. The combined taxes are 15%. How much does Daniel pay? Explain.
Answer:
$56.33
Step-by-step explanation:
30% off of $69.98 is ($49.99) then add 15% which makes it $56.33 .!
Answer:
48.986
Step-by-step explanation:
Lucita does the division problem 3.302 ÷ -1.27, and gets -0.026. She doesn't understand this result because she had estimated the answer to be -3. What was Lucita's mistake?
A: Lucita's estimate is too low.
B:The decimal point should be to the left of the 2.
C:The decimal point should be to the left of the 6.
D:Lucita's estimate is too high.
Thank you to those who end up helping, xx
What point is 10 units right and 1 unit down from (-10,1)?
Answer:(0, -10)
Step-by-step explanation:
please help! i made it 25 points since i got confused on this, lol.
Skylar went on a road trip to New York. On the first day of her trip. she drove 656 miles in 8 hours. What unit rate did she travel in miles per hour?
Answer:
I think its 82 miles per hour
Step-by-step explanation:
Answer:
82 miles per hour
Step-by-step explanation:
656 divided by 8, easy as that
could be written as 656 mi/8 hr
Could someone please explain what this is? (12)(12)
Answer:
Multiply 12 by 12=144
Step-by-step explanation:
Merry Christmas!!
6m- (7 + 4m)
ANSWER ASAP
Answer:
=2m−7
Step-by-step explanation:
how can bar diagrams help you to write expressions in which letters stand for numbers?
HELP I WILL GIVE BRAINLIEST FOLLOW YOU AND 30 POINTS!!!!!!!!!!!!1
Explanation/Answer: A bar diagram can be used to represent algebraic expressions or to give examples.
HAVE A GREAT DAY!