Solve by substitution or elimination
4X – 3y = 7
4x + y = 11
Answer:
(5/2 , 1)
Step-by-step explanation:
4X – 3y = 7
4x + y = 11
———————
Multiply a -1 to the bottom equation to get the 4x as a negative so it cancels out.
4x - 3y = 7
-4x - y = -11
——————
-4y = -4
Divide by -4
y = 1
Substitute the value of y into one of the equations and solve
4x - 3(1) = 7
4x -3 = 7
4x = 10
Divide by 4
X = 10/4
Simplify by dividing by 2
x = 5/2
Therefore the answer is (5/2, 1 )
What are the zeros of f(x) = x2 + x - 30?
O A. x= -15 and x = 2
O B. x=-6 and x = 5
O C. x= -2 and x = 15
O D. x= -5 and x = 6
SUE
answer B
Step-by-step explanation:
you need to factor, the factor that works is (x+6)(x-5) then you put in the x values that would make the equation 0, when x is 5 (x-5) = 0 and when x is -6 (x+6) =0
Who baked more cookies per batch?
A. Dan baked 2 more cookies than jenny per batch
B. Jenny backed 2 more cookies than Dan per batch
C. Dan backed 4 more cookies than jenny per batch
D. Jenny backed 4 more cookies than Dan per batch
two Number are in ratio 2:3 ,if their l.c.m is 48.what is the sum of number
Answer:
Step-by-step explanation:
Guess you didn't mean what you wrote in that song about meeeeeeee
Convert to Scientific Notation - one million two hundred thousand *
Answer:
1,200,000
Step-by-step explanation:
one million two hundred thousand
1,200,000
correct me if i am wrong
Combine like terms
30x + 6y - 24x - y =
Answer:
6x+5y
Step-by-step explanation:
Combining like terms (x and y)
we get
30x-24x=6x
6y-y=5y
=> 6x+5y
f(x) = -4(x + 7)2 - 6
f
-8x-62 hope this helpssss
Jasper decorates flower pots to sell in his shop.
HE knows that it takes 12 minutes to decorate a flower pot.
Jasper works from 9:30am until 12:50pm on Tuesday.
HE takes 20 minutes for a coffee break at 10:30am
How many flower pots does Jasper decorate on Tuesday?
Answer:
He works from 9:30am to 12:50pm.
He takes a brake at 10:30 for 20 mins.
Now the time he works will be
(12:50 - 9:30) - 20
3:20 - 20
3:00
NOTE: TILL HERE DONT THINK THE SIGN ':' IS USED FOR RATIO, ITS USED AS IN TIME. AND THIS MEANS THE NUMBER BEFORE ':' IS HOURS AND THE NUMBER AFTER THE ':' WILL BE MINUTES.
i.e., 3 hours.No. of pots decorated in 3 hours will be,
3 hours in minutes÷time taken to decorate one pot.
⇒ (3×60)÷12
⇒ 180÷12
⇒15
Thus he decorates 15 pots in the given time.
Jasper decorates [tex]15[/tex] pots on Tuesday.
There are [tex]60[/tex] minutes in [tex]1[/tex] hour . To convert from minutes to hours, divide the number of minutes by [tex]60[/tex].
How many flower pots does Jasper decorate on Tuesday?
He works from [tex]9:30[/tex] am to [tex]12:50[/tex] pm.
He takes a break [tex]10:30[/tex] for [tex]20[/tex] mins.
Now the time he works will be
[tex]3:20 - 20\\3:00[/tex]
i.e., 3 hours. No. of pots decorated in 3 hours will be,
3 hours in minutes ÷time taken to decorate one pot.
⇒ (3×60)÷12
⇒ 180÷12
⇒15
Thus he decorates [tex]15[/tex] pots in the given time.
Learn more about statement questions on: https://brainly.com/question/21483483
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16,8, 4, ...
Find the 10th term.
Round to the nearest thousandth (if necessary)
Find the perimeter and total area of the polygon
Answer:
perimeter = 56 in
area = 192 in
Which of the following is a function?
Please help thank you
Answer:
Pythagoras theorem states that “In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides“. The sides of this triangle have been named as Perpendicular, Base and Hypotenuse. Here, the hypotenuse is the longest side, as it is opposite to the angle 90°.
5.5 1.1 is equivalent to 55 - 11.
The dividend and divisor were both multiplied by
Answer:
10
Step-by-step explanation:
Write an addition equation or a subtraction equation (your choice!) to describe the diagram.
Answer:
(-9) + (-2) = -11
Step-by-step explanation:
The first arrow on the number line starts from 0, moves downwards 9 units from 0.
We would write this as -9.
Also, the next arrow starts moves from -9, 2 units downwards.
We would write this as -2
The addition equation would be:
(-9) + (-2) = -11
Which of the following numbers is a multiple of 4?
Answer:
4,8,12
Step-by-step explanation:
Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80
just keep multiplying by 4
(hope this helps can i plz have brainlist :D hehe)
There were 140 geese living in Larson Lake last year. It is overpopulated. A scientist has suggested a program to decrease the population of geese by 15% after 5 years. How many geese does the scientist hope will be in the lake in 5 years? Show your work.
Answer:
119
Step-by-step explanation:
Find 10% by dividing by 10, then halve it to get 5%. The answers are 14 and 7 accordingly.
Add them together to get 15%, which is now 21.
Take 21 off of 140 to get the answer, which is 119.
ALTERNATIVE METHOD - CALCULATOR
To solve the question using a calculator and with only one equation, multiply the number by 0.85 to find 85% of the number, and there's your answer.
PLSSS HELP ASAPPPP I BEG
MARKI BRAINLIST AND GIVING POINTS
Answer:
b = 34
m = 5
f(t) = 5x+34
Step-by-step explanation:
f(0) = 34, so that is its y intercept.
f(t) contains (0,34) and (8,74), which can be used to find the slope:
[tex]\frac{74-34}{8-0}=\frac{40}{8}=5[/tex]
Can someone reply ASAP pls!!!!
Answer:
the answer is 28
Step-by-step explanation:
the right angle=90
90-62=28
A cookie recipe calls for 1.5 teaspoons of vanilla for one batch. How many teaspoons of vanilla would be needed for 2.5 batches of cookies?
Answer:
3.75
Step-by-step explanation:
it said 2.5 batches to you need to 1.5x2 = 3 15 divided by 2 = .75
3.75
3.75 teaspoons of vanilla will be needed for 2.5 batches of cookies. If it requires 1.5 teaspoons of vanilla for one batch.
The unitary approach is a strategy for problem-solving that involves first determining the value of a single unit, then multiplying that value to determine the required value.
Given,
It requires 1.5 teaspoons of vanilla for one batch which can be interpreted as 1 batches of cookies requires 1.5 teaspoons of vanilla.
1 batches----->1.5 teaspoons of vanilla
Using unitary method,
To calculate the number of teaspoons of vanilla needed for 2.5 batch is as follows:
1 batches----->1.5 teaspoons of vanilla
Multiply 2.5 both sides.
(1 batches)X 2.5----->(1.5 teaspoons of vanilla)X 2.5
2.5 batches----->3.75 teaspoons of vanilla
3.75 teaspoons of vanilla will be needed for 2.5 batches of cookies
Learn more about unitary method, here:
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Divide. Enter your answer as a fraction in simplest form.
1/5 divided by 11/15
Please solve if you know no trolls please im desparate
Please if you can answer any question or if all if you can.
8) Tayna made a mistake in her work. Identify the mistake and explain how she could fix the mistake. *
How many degrees are there in the "Department Store" angle? *
How many degrees are there in the "Gas Station" angle? *
Answer:
Department Store:
7(18.75)+8= 139.25
Gas Station:
18.75+22= 40.75
Step-by-step explanation:
The mistake is 7x+8+x+22 should not equal 90. It should equal 180 degrees because the two angles are supplementary angles. (It forms a straight line)
Correct equation and how to solve for X:
7x+8+x+22=180
8x+30= 180
8x= 150
x=18.75
Department Store:
7(18.75)+8= 139.25
Gas Station:
18.75+22= 40.75
Ms. Jones bought a box with 8 packages of felt paper for her class. The total box of paper was priced at $40. If she buys the paper in single packages, the cost is $5.50 per package. How much does she save on 8 packages of paper by buying the whole box? Explain how you got your answer.
Answer:
$4
Step-by-step explanation:
To answer, we have to find the base unit of how much each package would cost out of a box. To do this, we divide the total amount of the box of paper by how many packages were inside:
40 / 8 = 5
So, each package costed Ms. Jones $5, while the single packages cost $5.50, so Ms. Jones saved $0.50 per package she bought, which if you multiply by 8, you get 4, so Ms. Jones saved a total of $4.
Hope this helps :)
How much is saved by buying a freezer marked at $ 600 with a discount of 20 % rather than one marked at $ 600 with a discount of 10 % then 10 % ?
Answer:
$60
Step-by-step explanation:
Find out how much is 1% of the price.
100% = 600
1% = 600 ÷ 100 = 6
Find out 10% and 20%
10% = 6 x 10 = 60
20% = 6 x 20 = 120
Find the difference.
120 - 60 = 60
Answer:
Well, if the 600 dollar freezer been reduced by 10% then it would now cost 540 dollars. If it was reduced by 20% then it would cost 480 dollars.
Step-by-step explanation:
600 x 0.10= 60
600 - 60= 540
600 x 0.20= 120
600 - 120= 480
HELP IM TIMED!!!!!
What is another way to write the equation 7/8x+3/4=-6
Answer:
Option A
Step-by-step explanation:
[tex] 7(\frac{x}{8}) + \frac{3}{4} = - 6[/tex]
Next step is :
[tex]7 \times \frac{x}{8} + \frac{3}{4} = - 6[/tex]
[tex] \frac{7}{8} x + \frac{3}{4} = - 6[/tex]
So this is equal to the another form of equation.
Which comparison about the shapes is true? There are 6 squares to 3 circles O There are 3 squares to 6 circles There are 6 circles to 9 squares. There are 3 squares to 9 circles
Answer:
second option 3 squares to 6 circles
Step-by-step explanation:
Answer:
B: There are 3 squares to 6 circles.
Step-by-step explanation:
I did this question and got it right
write two expressions to show a number increased by 11
Answer:
0+11=11
14+11=25
Step-by-step explanation:
Solve pls (correctly) brainliest if correct! I, lots of points!
Answer:
5
Step-by-step explanation:
First, find the equation of the line:
put it in the form y = mx + b where m is the slope and b is the y-intercept
You already have m = 2, so y = 2x + b.
Then, since you know (1, 3) is a solution so you can plug x = 1 and y = 3 into the equation to find out what b is.
3 = 2 * 1 + b
3 = 2 + b
1 = b
This means the equation of the line is y = 2x + 1.
Then, since you're trying to find out what y is when x = 2, you can plug in x = 2 into the equation:
y = 2 * 2 + 1
y = 4 + 1
y = 5
5 is the answer
Can you please help me out
Answer:
yes I can. what is the question?
14
Select the correct answer.
What is the total value of the goods and services produced in the nation in a year called?
A.
Gross Domestic Value
B.
Gross Daily Productivity
Oc.
Gross Domestic Product
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2) Ted invests $6,750 in a savings account
with a fixed annual interest rate of 6%
compounded semi-annually. What will
the account balance be after 10 years?