Answer:
Step-by-step explanation:
We are given
[tex]X + Y = 47\\and\\Y = X + 9\\\\use \: substitution\\X + (X + 9) = 47[/tex]
Answer: x+(x+9)
Step-by-step explanation:
Vincent purchased a scooter for $124 before tax. The store adds a 7.8% sales tax to every purchase. How much did Vincent pay for the scooter, to the nearest penny?
Step-by-step explanation:
Original price of the scooter = $124
Sales Tax = 7.8%
Price of the scooter after tax = 124 + 7.8%(124)
= 124 + 7.8/100 x 124
= 124 + 3.9/50 x 124
= 124 + 1.95/25 x 124
= 124 + 0.39/5 x 124
= 124 + 0.39 x 24.8
= 124 + 9.672
= 133.672
Therefore, after tax the scooter will cost $133.672.
Find the slope of the line passing though points (-7, 8) and (5, -7).
Answer:
13/13= Slope = 1
Step-by-step explanation:
M=rise/run, So that means 13 down then 13 to the left.
So 13/13 is the slope, but if it is simplified it is slope=1
I need help plzzzzzzzzzzzzzzzzz
Answer:
x=21
Step-by-step explanation:
I think we are supposed to assume that is a right angle which means 90-6= 84
84/4= 21
The sum of three numbers is 123. The third number is 3 times the second. The second number is 8 less than the first. What
are the numbers?
Gaurav takes 15 rounds of a rectangular park whose length is twice its breadth. If the total distance covered by Gaurav is 900m find the length and breadth of the park
Answer:
length = 20 breadth = 10
Step-by-step explanation:
divide 900 by 15
= 60
60 divided by 6 because the length is twice the breath
60 / 6 is 10
so ten is the breadth of one side and double that is 20 so the length is 20
Hope this helped!
tiana has a number, which she calls n. She subtracts 5 and then finds half of then difference.
Answer:
n-5
2
Steps:
subtract n ny 5 and then hind half of the difference.
Calculate the density: Object 1: has a mass of 45 g and a volume 3.5 ml Object 2: has a mass of 18 g and a volume of 9 ml
Answer:
Step-by-step explanation:
um im confused
Eight toy camels and three toy pigs cost Gary $85. Twelve toy camels cost Sherry $96. Assuming everyone bought their toys at the same store and there were no discounts, what is the cost of two toy pigs?
Answer:
2 toy pigs cost $14
Step-by-step explanation:
If 12 toy camels cost $96, I can solve ($96 / 12 = $8) to find the price of 1 toy camel. Now, I know that 1 toy camel costs $8.
If 8 toy camels and 3 toy pigs cost $85, I can multiply the price of 1 toy camel by 8 and solve ($8 x 8 = $64).
Next, I can subtract Gary's total cost by the toy camels to find how much was spent on 3 toy pigs. ($85 - $64 = $21) Therefore, 3 toy pigs cost $21.
Then, I can solve ($21 / 3 = $7) to find the price of 1 toy pig. Finally, I can multiply ($7 x 2 = $14) to find that 2 toy pigs cost $14.
Answer:
Two toy pigs cost $14.
Step-by-step explanation:
Gary bought 8 toy camels and 3 toy pigs for $85.
Sherry bought 12 toy camels for $96.
Thus, each toy camel cost $96/12=$8
Now we know Gary spent 8*$8= $64 in toy camels.
The rest of the $85, $85 - $64 = $21 was spent on the 3 toy pigs, thus each toy pig cost $21/3=$7
If one toy pig costs $7, two toy pigs cost $14.
If you had 39/12 dollars, how much money would that be in dollars and cents?
Answer:
$3.25
Step-by-step explanation:
what you do is divide 39 into 12 and that gives you 3.25 which is the answer!
Rondell's parents barrow 6,300 from the bank for a new car the interest rate is 6%per year. How much simple interest will they pay if they take 2years to repay the loan
Answer:
756Step-by-step explanation:
The simple interest can be found by using the formula
[tex]I = \frac{p \times r \times t}{100} \\ [/tex]
p is the principal
r is the rate
t is the time
From the question we have
[tex]I = \frac{6300 \times 6 \times 2}{100} = \frac{75600}{100} \\ [/tex]
We have the final answer as
756Hope this helps you
2x=17 what is the value of x
Answer: X = 8.5
Step-by-step explanation:
2x = 17
divide by 2
x = 8.5
By solving the value we get the value of x that is equal to 8.5.
Calculating the value of x:When considering unknown values, the value of x is used. In algebra, the letter "x" is frequently used to denote an unknown value. It's called a "variable" or an "unknown" in other circumstances.[tex]\to[/tex] 2x=17
[tex]\to[/tex] x=[tex]\frac{17}{2}[/tex]
[tex]\to[/tex] x=8.5
Find out more about the value of x here:
brainly.com/question/14170328
Help please it’s needed
Answer:
these shapes are congruent, because they have the same shape and the angles are the same
Step-by-step explanation:
follow me
How many months does it take to earn $180 in interest on an investment of the principal is $5000 and the interest rate is 2%?
Answer:
months = 6.67
Step-by-step explanation:
time in years = interest / (principal amount x rate)
time in y = 180 / (5000 x 0.02)
time in y = 180 / 100
time in months = 12 / 1.8
months = 6.67
Answer:69
Step-by-step explanation:
can you solve 1 1/2 x 4/5
Answer:
Fraction : 22/5 Decimal: 4.4
Step-by-step explanation:
Substitution method
3x+2y=15
y=6x
Answer:
x = 1
Step-by-step explanation:
3x +2y = 15
y = 6x
Substitute y for 6x in 3x +2y = 15!
3x + 2(6x) = 15
3x + 12x = 15
Combine like terms
15x = 15
Divide both sides by 15
15x = 15
x = 1
Brainliest is much appreciated!
2) MULTIPLE CHOICE: Find the value of y in the triangles.
A. 10/3
B. 10v2
C. 20V2
D. 106
Helppoo 10 points! I’ll mark brainliest!
Answer Yes, because you take the answer from 100+45 and subtract 3 to get to 97 and then you add 29 to make the 47 a 74.
Step-by-step explanation:
What’s the expression of this in simplest form
Answer:
3/17
Step-by-step explanation:
3/4 divided by 4 1/4 is = to 3/4 divided by 17/4= 3/4 times 4/17 = 3/17
What do the slope and y-intercept of a real-world linear function represent?
Answer:
Word problems with linear equations (that is, with straight-line models) almost always work this way: the slope is the rate of change, and the y-intercept is the starting value.
Step-by-step explanation:
Write an expression that has a value of -8.
Answer/Step-by-step explanation:
[tex]-4^{3}[/tex] ÷ 2 ÷ 4
-4 x -4 x -4 = -64 -64 ÷ 2 = -32 -32 ÷ 4 = -8Solve the proportion!
Answer: 13
Step-by-step explanation: i googled it
What is the sum of 1.64 and 0.73?
2.37
O 1.91
O 1.37
O 0.91
Answer:
2.37
Step-by-step explanation:
can someone please help me really quickly itis due at midnight tonight.
Answer:
4 or -4 !
Step-by-step explanation:
edit... isolate the variable, so divide 5 on both sides. then take the absolute value of d which is d. therefore d = 4 or -4! it's both positive and negative because absolute value you set it equal to a positive and negative!
I need help with this, could you just give me the answers? You don't need to show work
Answer:
9) B= 115 / C= 65 / D=135 / E= 115 / F=25
10) B= 110 / C= 70 / D=1120 / E=70 / F= 20
11) A= 68 / B= 112 / C= 68 / D=112 / E= 68
12) A= 64 / B=116 / C= 64 / E=64 / F=26
Step-by-step explanation:
9) B= 115 / C= 65 / D=135 / E= 115 / F=25
10) B= 110 / C= 70 / D=1120 / E=70 / F= 20
11) A= 68 / B= 112 / C= 68 / D=112 / E= 68
12) A= 64 / B=116 / C= 64 / E=64 / F=26
The grocery store was having a sale on apples and oranges. Leo bought 20 apples and oranges
(altogether). If the ratio of apples to oranges is 3 apples: 2 oranges, how many of the 20 total were oranges?
Answer:
4 ORANGES
Step-by-step explanation:
Find the length of side x in simplest radical form with a rational denominator
Answer:
The length of x=3/1
Step-by-step explanation:
Given the right triangle
Ф = 30
We know that
sin Ф = opposite/hypotenuse
The opposite of angle 30° = x
The hypotenuse is = 6
so
sin 30 = opposite/hypotenuse
1/2 = x/6 ∵ sin 30 = 1/2
1/2 × 6 = x
6/2 = x
3/1 = x
Therefore, the length of x=3/1
6) Which variable equals 55?
7) Which variable equals 101?
Answer:
5) ?
6) y = 55
7) no variable equals 101 in this triangle
Step-by-step explanation:
5) There was no question for 5
6) This is the answer because:
x = 79: 65+36+x = 180, 101+x = 180, x = 79
z = 144: 180 - 36 = 44
y = 55: 36+79+(y+10) = 180, 115+(y+10) = 180, y+10 = 65, y = 55
Hope this helps!
I REALLY NEED THIS DONE RIGHT NOW
evelyn knits hats and scarves for charity. she records the time it takes and the amount of yarn needed to make one of each item. Last winter Evelyn knitted for 180 hours. She used 2,520 yards of yarn. How many hats and scarves did Evelyn knit? (it has the data)
Answer:
It is midpoint, vertex, and medians in that order.
Step-by-step explanation:
there
Answer:
[tex]Evelyn \: knit \: made \to \\ \boxed{12 }\: hats \: and \: \boxed{8 } \: scarves[/tex]
Step-by-step explanation:
[tex]let \: the \: hats \: be \to \: h \\ let \: the \: scarves \: be \to \: s \\ then \to \\ 5h + 15s = 180.....(eq .1) \\ 110h + 150s = 2,520.....(eq .2) \\ from \: .....(eq .1) \\ 15s = 180 - 5h \\ s = \frac{180 - 5h}{15} .....(eq .3) \\ equating \: .....(eq .3) \: in \: .....(eq .2) \\ 110h + 150( \frac{180 - 5h}{15} ) = 2,520 \\ 110h + 10(180 - 5h) = 2,520 \\ 110h + 1800 - 50h= 2,520 \\ 60h = 2520 - 1800 \\ 60h = 720 \\ \boxed{h = 12} \\ applying \: \boxed{h} \: in \: .....(eq .3) \\ s = \frac{180 - 5(h)}{15} \\ \\ s = \frac{180 - 5(12)}{15} \\ \\ s = \frac{120}{15} \\ \boxed{ s = 8}[/tex]
♨Rage♨
Item 19
Write the word sentence as an equation. Then solve.
The sum of a number y and −3 is −8.
Equation:
Solution: y=
Answer:
The answer is
Equation: y+-3=-8
Solution: y= -5
Step-by-step explanation:
Hope this helps!
(7x10^-6) (8x 10^-5)
Answer:
56x^2 + 10^-11
Step-by-step explanation:
multiply the 7x and 8x and you get 56x^2
multiply the 10^-6 and 10^5-5 and you get 10^-11