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I Need this answer please :))

### Question Description

I need help with a Algebra question. All explanations and answers will be used to help me learn.

1. Solve the system using **substitution**. Write the solution as an ordered pair.

3x + 4y = -7 2y - x = -1

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Math 5 questions helppppp please!!!

Math 5 questions helppppp please!!!

QUESTION 1Mrs. Williams, a sixth grade math teacher, is grading papers. When she gets to the question about how 3 brothers can equally split a pizza if the pizza has 12 slices, she notices two students worked the problem different from her answer key.Student 1 computed the number of slices each brother could have by dividing 12 by 3 like this:12 ÷ 3 = 4Student 2 multiplied 12 by like this:Mrs. Williams’s answer key shows the problem computed as = 4. Which student(s), if either, is/are correct? Explain.QUESTION 2When finding the sum of 512 and –614, Josh used a left-to-right algorithm to compute the answer.He first added the hundred’s digits 500 + (–600) = –100He then added the ten’s digits 10 + (–10) = 0Lastly, he added the one’s digits 2 + (–4) = –2His result was –100 + 0 + (–2) = –102Is Josh’s answer correct? How else could Josh have computed the sum?QUESTION 3Josiah was ordering the following rational numbers in math class: –3.8, –12, and –6 and got a bit confused. a) Help Josiah place the numbers in order from least to greatest.b) Now, help him list them in order from least to greatest based upon their absolute values.c) Finally, explain why the orderings from parts a and b are different.QUESTION 4You have just moved to a new town and are trying to select a bank. Bank A offers a checking account for only $25 per month and requires you to keep a minimum balance of $100 in your account. Bank A also charges an overdraft fee of $20, offers the use of a debit card at no charge, and assesses an ATM fee of $3 per use. Bank B offers a checking account for only $18 per month and requires you to keep a minimum balance of $50 in your account. Bank B also charges an overdraft fee of $20, offers the use of a debit card for $0.25 per transaction, and assesses an ATM fee of $3.50 per use.If you typically have a balance of $250 in your account, use your debit card 24 times per month, and use the ATM four times, which bank would be less expensive over time?QUESTION 5Explain how to use a number line to model the equation –7 + 4. Then determine its sum.

10 help me with this i really it done man 4.07 6th grade math

10 help me with this i really it done man 4.07 6th grade math

Assignment: Tax and Tip Investigation
How
much does it really cost to enjoy a meal at your favorite restaurant?
Find
a menu from one of your favorite places to eat (you can find a lot of
restaurant menus online).
Make a list of what
you would typically order at this restaurant. Be sure to include drinks,
appetizers, sides, and desserts if you generally order these things. Next to
each item, write the price that is listed on the menu.
Now add the prices of
all of these items together to get your subtotal:__________________
What is the sales tax
in your area? ___________________
How
much is the tax on your meal? (If there is no sales tax in your community, use
the tax rate of 8% for this exercise.) ____________
You should leave your
server an 18% tip. How much should you tip for this meal? _______
What is the total
cost of your meal (with tax and tip)? _________

Find the total area of Khianna's fish. 6th grade math - Part 1 and 2

Find the total area of Khianna's fish. 6th grade math - Part 1 and 2

Part 2:
Construct an image of
an animal of your choosing (something other than a fish) completely out of
rectangles and right triangles. Make sure that your image consists of at least eight
shapes. At least one of your shapes must be a rectangle and at least one must
be a right triangle.
Measure the sides of
the individual shapes and find the total area of the composite figure.
Be
sure to include in your response:
The “animal” image you have
created.
The computations you performed
finding the areas of the animal’s composite parts.
The total area of the figure.

10 help me I need help 10 buck man 6th grade

10 help me I need help 10 buck man 6th grade

Assignment: Direct Variation
Investigation
In
this investigation you are going to find the constant flow rate of different
faucets around your house. You will use this rate to determine how quickly your
faucets can fill up other containers.
Part 1:
Identify
two faucets in your house to use for this investigation such as the kitchen
sink, bathroom sink, bathtub, or garden hose.
Faucet 1 Description:
________________________
Faucet 2 Description:
________________________
Part 2:
Determine
the time it takes each faucet to fill to a certain volume.
For
each faucet:
Turn on your faucet and allow the
water to run.
Once the water is flowing at a constant
speed, place an empty 1-gallon milk jug under it.
With a stop watch, time how long
it takes for the gallon jug to fill up. This time is the number of seconds
it takes for a gallon of water to flow from your faucet.
Number of seconds to
fill a 1-gallon container from faucet 1 ___________
Number of seconds to
fill a 1-gallon container from faucet 2 ___________
Part 3:
Write
the unit rate of each faucet in gallons per second and in seconds per gallon.
Faucet 1 rate: r =
_____________ seconds/gallon
Faucet 2 rate: r =
_____________ seconds/gallon
Part 4:
Now
use the rates and/or equations to fill in the table with how much time it will
take your faucet to fill the following containers:
Container to be
filled
Time for Faucet 1
15-gallon
kitchen sink
32-gallon
garbage can
40-gallon
bath tub
2500-gallon
swimming pool
Container to be filled
Time for Faucet 2
15-gallon
kitchen sink
32-gallon
garbage can
40-gallon
bath tub
2500-gallon
swimming pool
Part 5:
Write
an equation for each faucet representing the relationship between x, the gallons to be filled in the
container and y, the time it takes to
fill the container.
Faucet 1: y = ____ x
Faucet 2: y = ____ x

10 help me with 5th grade math

10 help me with 5th grade math

Assignment: Comparing Rational Numbers
Investigation
1. You
want to put the wrenches in order from smallest to largest opening just using
the labeled fraction measurement.
a. Give
two different methods you could use to put the fractions in order.
b. Choose
one of the methods from Part 1a and show your conversions below.
c. List
the fractions in order from least to greatest.
2. Plot
the sizes of the wrenches on the number line below. Label each point with the
wrench measurement.
3. Explain
how the number line can be used to support your answer from Part 1c.

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