Consider this equation.
7.8 + 2(0.75m + 0.4) = -6.4m + 4(0.5m - 0.8)
Mia solved the equation and determined that m = 2. Is she correct?
Answer:
No, Mia is not correct, the answer is -2.
Step-by-step explanation:
First we are going to use the distributive Property.
Step 1: 2(0.75+0.4). multiply the 2 out. .75m x 2=1.5m and 2 x .4= .8.
We get 1.5m+.8, so 2(0.75+0.4)=1.5m+.8
Now we are going to distribute on the oher side. 4(.5m-.8)
4x .5m=2m and 4x.8=3.2. Keep the sign the same and we get 2m-3.2, so 4(.5m-.8)=2m-3.2
We put this into the new equation to get 1.5m+.8+7.8=-6.4m+2m-3.2
Step 2: combine like terms
.8+7.8= 8.6 and -6.4m +2m =-4.4m
Plug that into our equation and we get 1.5mn+8.6=-4.4m-3.2
Step 3: Switch the sides
Bring -4.4m to the other side to get 1.5m+4.4m=5.9m
One side is 5.9m
We bring 8.6 to the other side to get -8.6. now we do -3.2-8.6=-11.8.
Our new equation is 5.9m=-11.8
divide by 5.9 on both sides to get our answer of
m=-2
21. Melanie is making homemade stickers, She uses
the recipe shown to create the glue for the stickers
reasonable estimate for the number of batches she
a. She has 545 milliliters of vinegar. Which is a more
can make,5 or 7? Explain your answer.
About how many times as many milliliters of vinegar are needed than
lemon extract?
(brainliest included for correct answer if not report)
Answer for 12 points please?
Answer:
4,8
Step-by-step explanation:
4x is 4 on the x line, + 4 is 8 therefore Y = 8.
help please !! thank u
Answer:
I think this is pythagorean theorem but I'm not sure what I got was 15 for the answer
A bakery sells 4 muffins for $8.60. At that rate, how much would it cost to buy 5 muffins?
Answer:
5 muffins would be $10.75
Step-by-step explanation:
I you want me to explain just ask.
How many millimeters are in 3.2 centimeters?
.32
320
32 mm
3.2
22.
If there are 10 millimeters for every 1 centimeter, what fraction of a centimeter is a millimeter?
2.54
1/10
10
2.45
5/ 2 x ≤ -14
A. -10.3
B. -6
C. -5.6
D. -5
Which of these does not make the inequality true?
Answer:
-5
Step-by-step explanation:
5/2(-5)≤-14 false
-12.5≤ -14 so false
The others are true
To celebrate getting a new car, Johnny went out to eat with 3 friends. Their meal, including tax, was $75. If they left a 15% tip, what is the cost of their total bill with the tip included?
Answer:
$86.25
Step-by-step explanation:
15% as a fraction and multiply that by 75 and then add that to 75.
Samantha and Corey are on a road trip. The first day, they drive 318 miles in 6 hours. What is their speed in miles per hour?
Answer: 58 miles per hour
Step-by-step explanation:
If you divide 318 by 6 then you get how many miles were driven in that hour. so there speed was 58 miles per hour
help me plss............................................
Answer:
im not sure if this is correc but i think it may be -15 like i said not 100% sure im like 38% sure sorry
Step-by-step explanation:
Answer:
-15
Step-by-step explanation:
The current balance of Amber’s bank account was $8. She withdrew
$14. Find the new balance in her account.
Answer:
$-6
Step-by-step explanation:
$(8-14)
= $-6
Hope this helped!
The table of values below represents a linear function. Which of these points could also be an ordered pair in the table and why?
A. (18,27), because the rate of change of the function is 3/4
B. (18,27), because the rate of change of the function is 4/3
C. (27,18), because the rate of change of the function is 3/4
D. (27,18), because the rate of change of the function is 4/3
Answer:
B
Step-by-step explanation:
Hope I helped
WORd problem I hate word problems please help in image bellow
This drawing shows part of a centimeter ruler. The drawing has been enlarged. The small marks indicate millimeters. The large marks indicate centimeters.
How long is the paper clip?
2.3 mm
2.3 cm
1.3 cm
2 cm
Jason has 4 tiles. Each tile has a number printed on it. The numbers are 2, 3, 6, and 8. A decimal number is formed using the tiles and the clues. Find the number. Clues: 1. The digit in the tens place is the greatest number. 2. The digit in the tenths place is less than the digit in the hundredths place. 3. The digit in the ones place is greater than the digit in the hundredths place.
Answer:
86.23 should be your answer
Answer:
86.23 Hope I helped
Step-by-step explanation:
UwU
Have a great day
I need answer ASAP.
Abram was in a contest shooting baskets. He made 20% of his shots. He took a total of 240 shots in the competition. How many baskets did he miss?
Answer:
192 baskets
Step-by-step explanation:
:PHOTO: I NEED HELP ASAP
6:1.5
12:3
18:4.5
24:6
96.8:4,820
48.4:2,420
24.2:1,210
12.1:605
A carpenter needs 36 screws that are 1.5 inches long, 24 screws that are 2 inches long, and 12 screws that are 2.5 inches long. There are three different sized screws shown. The screws are marked two and a half inches, two inches, and one and a half inches. What is the ratio of 1.5-inch screws to 2.5-inch screws, written in three different ways? Do not reduce.
Answer:
48/132
2:10
4:10
Step-by-step explanation:
Which situation could be represented by the equation 38.25 = 3x?
A. A group of 3 friends had $38.25 all together. Each friend had the same amount of money. What is x, the amount of money each friend had?
B. A group of friends had $38.25. They decided to triple their money by working for a neighbor. What is x, the total amount of money the friends had all together after working for a neighbor?
C. A group of friends had $38.25. They earned $3 more. What is x, the amount of money the friends have all together?
D. A group of 3 friends each had $38.25. What is x, the total amount of money the friends had all together?
Answer:
D
Step-by-step explanation:
What is the GCF of 32a^3 b and 16ab^2?
Answer:
The GCF is 4 a
Step-by-step explanation: