Answer:
3y+4x=12
when x is -2
3y+ 4(-2)=12
3y-8=12
3y=20
y=20/3=6.67
when x is -1
3y-4=12
3y=16
y=16/3=5.33
when x is 0
3y-0=12
3y=12
y=4
when x is 1
3y+ 4 =12
3y =8
y=8/3=2.67
when x is 2
3y +8 =12
3y=4
y=4/3=1.33
Recall that the perimeter of a rectangle is P=2(W+L), where W is the width and L is the length. The length of a rectangle is 23 feet more than the width. If the perimeter is 70 feet, then what is the length of the rectangle, in feet?
Answer:
Length = 6 + 23 = 29 feet
Step-by-step explanation:
Width = x
Length = x + 23
2x + 2(x+23) = 70
2x + 2x + 46 = 70
4x = 70-46
x = 24/4
x = 6
-
If
f(x) = x - 5
and
g(x) = 4x – 2
-
Find
f(g(x)) = 4x – [?]
-
Answer:
4x - 7
Step-by-step explanation:
To evaluate f(g(x)) substitute x = g(x) into f(x)
f(g(x)
= f(4x - 2)
= 4x - 2 - 5
= 4x - 7
you plan to ride your bike to school and back at an average rate of 6 miles per hour for a distance of 10.5 mile how long will it take you
Answer:3[tex]\frac{1}{2}[/tex] hours
Step-by-step explanation:
You plan to go a total distance of 21 miles. At 6 miles per hour it takes you
[tex]\frac{21}{6}[/tex] hours or3 and [tex]\frac{3}{6}[/tex] which equals 3 and 1/2 hours
Which of the following ordered pairs is a solution to the equation? (-4,-1) (-2,0) (0,3) (9,1)
Kylee is making a cake. The box says for every 1/4 cup of water she needs to use 2/4 of the cake mixture. She uses 3 1/4 cups of water. How much cake mixture does she use? (show your answer as a decimal and as a fraction.)
Answer:
Kylee makes 6 1/2, or 6.5 cups of the cake mixture.
Step-by-step explanation:
She uses double the cake mixture as water. She uses 3 1/4 cups of water, or 13/4 as an improper fraction, so she uses double that of cake mixture, which is 6 1/2, or 26/4 cups of cake mixture.
As a decimal that is 6.5.
Question 10 (5 points)
Seven values on the number line above are marked with letters. Match the opposites.
Question 10 options:
A) C and L; F and H
B) F and H; Y and Y
C) C and L; A and K
D) A and K; F and H
Answer:
B
Step-by-step explanation:
from observation......
10x-1/3y=15
solve for y
Answer:
[tex]y = \frac{10x - 1}{45} \\ [/tex]
Step-by-step explanation:
[tex] \frac{10x - 1}{3y} = 15 \\ 10x - 1 = 15 \times 3y \\ 10x - 1 = 45y \\ \frac{10x - 1}{45} = y \\ [/tex]
select the exspressions that are equivalent to 6(3p +2)+2
Answer:
18p + 14
Step-by-step explanation:
6
(
3
+
2
)
+
2
{\color{#c92786}{6(3p+2)}}+2
6(3p+2)+2
1
8
+
1
2
+
2
-19=-14v+14v
Solve for V
:) gets brainliest
[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]
Let's solve for v :
[tex] - 19 = - 14v + 14v[/tex]here, the the terms associated with v, that us -14v and 14v gets cancel out, so there's no solution for v and hence it's value can't be determined.
what is the GCF of 30 42
Answer:
The answer is 6 :)
Step-by-step explanation:
The GCF of two non-zero integers, x(30) and y(42), is the greatest positive integer m(6) that divides both x(30) and y(42) without any remainder.
Answer:GCF=2
Step-by-step explanation:
The lowest factor that fits is 2.
2x15=30
2x21=41
PLEASE ANSWER I WILL GIVE THANKS AND BRAINLIEST!! <33
Answer:
13) 10
17) 15
21) 10
25) 1
Step-by-step explanation:
13)
5x becomes 5(2) which is 5 times 2 = 10
17)
(4x) + 7 becomes (4 times 2) + 7 = 15
21)
(2x) + (2y) becomes (2 times 2) + (2 times 3)
= 4 + 6
= 10
25)
1/2(z - x) becomes 1/2(4 - 2)
= 1/2(2)
= 1
Need some help, please. :D
Answer: (P.s its very hard to write special characters here, i hope this helped though)
((−6d0)(g−3))(h2)
d−5m3g−2h5
=
−6d5g2h2
g3h5m3
=
−6d5
gh3m3
Simplify the expression shown
Answer:
46.5
Step-by-step explanation:
9×6=54
54-7.5=46.5
Pls I have a 50 in math rn
Answer:
A
Step-by-step explanation:
pls help. i’ll give Brainliest.
Find the value of x
solving steps
Answer:
x = 8
Step-by-step explanation:
Supplementary angles add up to 180 degrees to make a straight line.
The red square in one of them indicates that it is 90 degrees on their side which means that it is 90 degrees on the other where (6x+2) and 40 degrees are.
(6x+2) + 40 = 90
6x + 42 = 90
6x = 48
x = 8
Cortney had 5 pieces of candy Cortney ate 1 piece how many pieces does Cortney have left?
Round each number to the nearest thousand.
1,239 and 8,568
1,000 and 9,000
1,000 and 8,000
2,000 and 8,000
2.000 and 9.000
heyyy, pls help! due today!
(i showed the answer choices only for part A because they're all the same answer choices.)
Answer:
Step-by-step explanation: WELL i cant help lm really sorry
A frog leaps off of a ledge and lands on the ground below. The function
f(x) = -1.6x2 + 2.3x + 3.2 represents the frog's path.
a. How high is the ledge where the frog starts?
b. How high is the frog at its highest point?
c. What is the frog's horizontal distance from the ledge when it
reaches its highest point?
Answer:
-1.6x2 + 2.3x + 3.2 = f(x) to solve this you do -1.6 x 2 = -3.2 + 2.3x = -0.9 + 3.2 = 2.3
Step-by-step explanation:
For A the height of ledge is 3.2
for b - the frogs highest point 2.30x
and c is 12.3x
Please help me I need this done in like 10 minutes!!
Find the solution for this system of equations.
2x-3y=2
х= 6у-5
use distributive property to find the product 1/5 * 5 10/11
pls help lolz
Answer:
1/2/11
Step-by-step explanation:
1/5×5/10/11=1/5×65/11
=13/11
=1/2/11
Which set of angle measures could be the measures of the interior angles of a triangle?
60°, 45°, and 70°
30°, 85°, and 25°
55°, 90°, and 35°
119°, 15°, and 45°
Answer:
55°,90°,35°
Step-by-step explanation:
the sum of interior in a triangle is 180° and 55 +90+35=180
what type of mathematical law is this (6+4)+100=6+(4+100)
Answer:
Associative Property of Addition
Step-by-step explanation:
According to the Associative Property of Addition: when three real numbers are added, it makes no difference which two are added first.
a + (b + c) = (a + b) + c
Therefore, in the given equality statement: (6 + 4) + 100 = 6 + (4 + 100), the sum of the numbers on either side of the equation will have the same results.
(6 + 4) + 100 = 6 + (4 + 100)
(10) + 100 = 6 + (104)
110 = 110
Please mark my answers as the Brainliest, if you find this explanation helpful :)
Answer the question below
Click all of the multiples of 3 that are greater than 3 shown in the table. Don’t worry if a number has already been crossed out, go ahead and click it if it is a multiple of 3 that is greater than 3. (Choose 5)
12
6
15
7
18
9
Answer:
12 15 18 9 7
Step-by-step explanation:
Answer:
12, 6, 15, 18, 9Step-by-step explanation:
Multiples of 3 greater than 3 are:
12 = 3*46 = 3*215 = 3*518 = 3*69 = 3*3The only odd number is 7
Ill give brainly
The diagram below, not drawn to scale, shows a prism of length 30 cm. The . cross-section WXYZ is a square with area 144 cm”.
Calculate (i) the volume, in cm', of the prism ( 2 marks) (ii) the total surface area, in cm', of the prism. ( 4 marks)
Answer: 1) 4320 cm^3
2) 1728 cm^2
Step-by-step explanation:
1) V= 12 x 12 x 30 = 4320
2) S= 144 + 144 + 12 x 30 x 4 = 1728
Noah has a box of coins in his room. The box currently
contains 40 coins, consisting of pennies, dimes, and
quarters. The number of pennies is equal to the
number of dimes, and the total value of the coins is
$8.05. How many of each type of coin does Noah have
in the box?
The currency called the dollar can be divided or reduced into smaller forms also known as pennies, quarters, nickels and dimes.
The number of pennies is 5, the number of dimes is 5, the number of quarters is 30.
It is important to note that
a penny = $0.01
a dime = $0.10
a quarter = $0.25
Let's represent the number of
pennies = p
dimes = d
quarters = q
The number of pennies is equal to the number of dimes, hence:
p = q, so we can represent the number of pennies and dimes as y
The box currently contains 40 coins
So: 40 = y + y + q
q = 40 - 2y...........Equation 1
The total value of the coins is $8.05
So: 0.01y + 0.1y + 0.25q = 8.05 ........... Equation 2
We substitute 40 - 2y for q in Equation 2
0.01y + 0.1y + 0.25(40 - 2y) = 8.05
0.01y + 0.1y + 10 - 0.5y = 8.05
Collect like terms
0.01y + 0.1y - 0.5y = 8.05 - 10
-0.39y = -1.95
Divide both sides by -0.39
-0.39y/-0.39 = -1.95/0.39
y = 5
Since y represents the number of pennies and dimes, the number of pennies is 5 and the number of quarters is 5.
To solve for the number quarters, we would use equation 1
q = 40 - 2y...........Equation 1
q = 40 - 2 x 5
q = 40 - 10
q = 30
The number of quarters is 30.
Therefore, we have 5 pennies, 5 dimes, and 30 quarters.
To learn more, visit the link below:
https://brainly.com/question/17573861
what does f(9)=5x+12 equal?
Answer:
57
Step-by-step explanation:
5(9)+12=45+12=57
12 divided by 478 using compatible numbers and to find two estimates
Answer:
we get 48 if we divide both:)