Answer:
x=10
Step-by-step explanation:
Step-by-step explanation:
5+x=3(x-7)+6
5+x-3x+21-6=0
-2x+20=0
-2x=-20
x=-20/(-2)
x=10
Share 39 in the ratio 3:3:7
Answer:
9 : 9 : 21
Step-by-step explanation:
sum the parts of the ratio, 3 + 3 + 7 = 13 parts
Divide 39 by 13 to find the value of one part of the ratio
39 ÷ 13 = 3 ← value of 1 part of the ratio, then
3 parts = 3 × 3 = 9
7 parts = 7 × 3 = 21
Then 39 in ratio 3 : 3 : 7 = 9 : 9 : 21
$ 900 in a saving account earns 15% interest, compounded annually. What is the balance after 6 years?
I used to do these but I forgot
(For the given expression, use the Associative Property of Multiplication to enter an equivalent expression.
(ab)c =
Answer:
a(bc)
Step-by-step explanation:
................
please help
the x =
the box-
the T-
Answer:
x²=25
x=25½
x=5
...................
If f(x)=−x2−8x+7 and g(x)=x−1, what does (g−f)(x) equal?
A)(g−f)(x)=−x2−9x+8
B)(g−f)(x)=−x2−7x+6
C)(g−f)(x)=−8x+8
D)(g−f)(x)=x2+9x−8
[tex]the \: surface \: area \: of \: a \: cube \: is \: 24 \: cm \: fimd \: the \: volume[/tex]
Answer:
8
Step-by-step explanation:
24 = 6s^2
4=s^2
2=s
2^3 = 8
8. The table below shows the number of students enrolled at Mapleton High School since 2002. Write
an equation for the line of best fit, then predict the number of students enrolled in 2011.
20022892
2003 3042
2004 | 3087
2005 3136
2006 3296
The equation for the line of best fit shows the relationship between the number of students enrolled
The equation for the line of best fit, then predict the number of students enrolled in 2011 is [tex]y = 90.2x - 177670.2[/tex]
How to determine the equation of the line of best fitTo do this, we make use of a graphing calculator that has the following calculation summary
Sum of X = 10020Sum of Y = 15453Mean X = 2004Mean Y = 3090.6Sum of squares (SSX) = 10Sum of products (SP) = 902b = 90.2a = -177670.2A regression equation is represented as:
[tex]y = bx + a[/tex]
So, we have:
[tex]y = 90.2x - 177670.2[/tex]
Hence, the regression equation is [tex]y = 90.2x - 177670.2[/tex]
Read more about regression equations at:
https://brainly.com/question/26347582
330 is what percent of 20?
Answer:
6.06
Percentage Calculator: 20 is what percent of 330? = 6.06.
determining slope and y-intercept
Use the following table to answer questions #15 and #16.
Answer:
Slope. -2.5
Y-intercept. 15
PLEASE HELP URGENT WILL MARK BRAINLIEST
Solve System by writing the system of Linear equations Jason reached into his pocket and pulled out 13 coins and noticed he only had quarters and dimes. If the value of the coins was $2.65 how many quarters did he have?
Answer:
he had nine quarters and four dimes
Can someone please check my answer?!
need help dont know which one to chose
Answer:
the answer to this problem is A
Find the area of this circle . Use 3 for pi
Answer:
588
Step-by-step explanation:
3 x 14 x 14 ( or 14^2) is 588
hope this helped!!
If Brooke and her friend can bake 24 batches of brownies in 8 hours, and they both work 40 hours in one week, how many batches of brownies can they bake that week? If Brooke still charges $2.00 a batch, how much money will they make that week?
Answer:
Step-by-step explanation:
40hr(24b/8hr)=120b so they make 120 batches
120b($2/b)=$240 so they make $240 together (or $120 each)
Help me with this :))))))
Answer:
CE = 21.2
Step-by-step explanation:
CE = CD + DE = 14 + 7.2 = 21.2
select all the statements that are true (YOO SOMEONE)
Answer:
Step-by-step explanation:
so we see that the triangle is getting bigger this means that B, D,E are true I think
If my answer helps please mark as brainliest.
Can someone please check my answer???
(THIS IS WORTH MANY POINTS, AND I’LL GIVE BRAINLIEST)
The figures in each pair are similar. Compare the first figure to the second. Give the ratio of the perimeters and the ratio of the answers.
9514 1404 393
Answer:
perimeter ratio: 4 : 3area ratio: 16 : 9Step-by-step explanation:
The ratio of perimeters is the ratio of corresponding sides.
first : second = 8 : 6 = 4 : 3 . . . ratio of perimeters
The ratio of areas is the square of the ratio of linear dimensions.
first : second = 4² : 3² = 16 : 9 . . . ratio of areas
Answer:
look at the explanation <33
Step-by-step explanation:
The first figure is similar to the second figure. The ratio would be 4:3
A) josie makes fruit punch by mixing fruit juice and lemonade in the ratio 3:4, she needs to make 49 litres of punch for a party. how much of each ingredient does she need (in lires) (b) During the party josie decides tio make some more. she has 15 litres of fruit juce left and plenty of lemonade. how much extra punch can she make? (answer in letres)
(c) to make the second batch of punch go further josie adds 4 more lires of lemonade. what is the ratio of fruit juice and lemonade in the second batch? (answer in ratios e.g 5:9) ONLY GIVE ANSWER TO B AND C PLEASE
Answer:
B
Step-by-step explanation:
trrsygg. vbbkkmmk. jk. k
hi help me please
.........
Answer:
A bee hive
Step-by-step explanation:
Bees work in swarms so they must have swarm intelligence in order to work together
A tip for great service is 20% of the bill. If the bill for dinner is $32, what is the total cost of dinner?
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Can someone solve 7x+2x+3
step by step
Answer:
9x+3
Step-by-step explanation:
first you add common variables like 7x plus 2x and get 9x. since 3 does't have a common variable it is just 3 therefor you answer would be 9x+3
Starting : 7x+2x+3
combine like terms 7x+2x=9x
youre left with 9x+3
There are 60 seats on a train. 70% of the seats are empty. How many empty seats are there on the train?
Answer:
Step-by-step explanation:
60(70/100)
4200/100
42 empty seats
???? Help please you get 40 points if u help
Answer:
B) P = 8x + 4
Step-by-step explanation:
Formula:
P= 2( l + w)
P = 2( x + 2 + 3x)
P = 2(4x + 2)
P = 8x + 4
18. Given PQ | BR. Then find the measure of x
Answer:
∠x = 70°
Step-by-step explanation:
Given that PQ||BR
Line PQ and BR with transversal AC,
∠x + ∠ACR = 180° {Co-interior angles}
⇒∠x + 110° = 180° {From what I can see it looks like 110.}
⇒∠x = 180° - 110°
⇒∠x = 70°
Which square root is between 4 and 5?
O 10
O 14
O24
O 32
Answer:
√24 because it's lies on between of√16 and√25.
The only square root that falls between 4 and 5 is √24.
What is Number system?A number system is defined as a system of writing to express numbers.
We can estimate the value of each square root and see which one falls between 4 and 5:
The value of √10 is less than 4 because √10 is, 3.16
√14 is less than 4.5 because √14 value is 3.76
√24 is greater than 4.5 because √24 value is 4.89
√32 is greater than 5 because 5 x 5 = 25, and √32 is slightly smaller than 5.
Therefore, the only square root that falls between 4 and 5 is √24.
To learn more on Number system click:
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#SPJ7
I need some help on this
Answer: A
Step-by-step explanation: A function means that your x can only have one y but your y can have multiple x's.
Kevin and Christy both saved money for their class trip. Kevin saved the same amount each week. The total amount that Kevin saved at the end of every two weeks is shown in the table below.
Answer:
Step-by-step explanation:
You earn a $12 weekly allowance. Would you rather get a 20% increase or $15 a week? Why?
(PLEASE SOMEONE ANSWER THIS A S SOON AS POSSIBLE!!!)
Answer:
$15 a week
Step-by-step explanation:
A 20% raise is $14.40 a week
Describe how you would test a sample of food to show it contains protein.
Give the reason for any safety precautions you would take.
PLEASE HELP
Step-by-step explanation:
Iodine test for starch
Method:
Place one spatula of the food sample on a dish or 1 cm3 if the sample is liquid.
Using a dropper, place a few drops of iodine solution onto the food.
Record any change in the colour of the solution.
Starch is detected using iodine solution. This turns blue-black in the presence of starch.