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4 years ago

How do I Solve 4y + 3 = 2y + 14 ???

1 answer:

3 0

$4y+3=2y+14$
subtract 2y from both sides to get the y figures on the same side.
$2y+3=14$
Then subract 3 from both sides to get the number values on the other side.
$2y=11$
Divide by 2 to get y alone.
$y=\frac{11}{2}$
$y= 5.5$

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If Mrs. Allan's car uses 8 gallons of gas for a 224-mile trip, then, at that rate, how many gallons of gas would the car use for

Sonja [21]

Answer:

20 gallons of gas

Step-by-step explanation:

Given that :

8 gallons of gas = 224 mile trip

Miles per gallon of Mrs. Allan's car :

Number of miles / gallons of gas

224 miles / 8 gallons

= 28 miles per gallon

Gallons of gas car will use for 560 miles

Number of miles / miles per gallon

560 miles / 28 miles per gallon

= 20 gallons of gas

5 0

4 years ago

810 was rounded to the nearest ten. What is the upper bound?

Sonbull [250]

Answer:

Can’t be rounded

Step-by-step explanation:

810 is divisible by 10, so it is already at the nearest 10.

(hope this helps can I please have brainlist (crown)☺️)

3 0

3 years ago

56 divided by 8\11 hellpppp

liraira [26]

Since this is a division problem with a fraction, you must multiply by its reciprocal.
56 x 11/8:
56 x 11= 616
New fraction is 616/8
This simplified is 77
Answer is 77

6 0

3 years ago

Mr. Dudley is writing a test for his mathematics class. The test will have true/false

Aleks [24]

Answer:

Step-by-step explanation:

so x=true/false questions

y=multiple-choice questions

2x+4y=100

2x=y

plug in 2x for y in the first equation

2x+4(2x)=100

10x=100

x=10

y=20

8 0

3 years ago

Janna has three flat plates easy the same size. She stores them in an L shaped drawer as shown so that they fit snuggly inside w

Phantasy [73]

Answer:

258 square centimeters

Step-by-step explanation:

Consider the image attached below.

We can see that the length of each side of L shape is 40 cm and in 2 plates fit in between.

We need to find the are which is not covered by the plates. Let us calculate the area of L shape first.

We can see that it is a square with one fourth of its area missing. So the area of square with side length 40 cm is,

$A_1= 40 \times 40 = 1600 cm^2$ , where ' $A_1$ ' is the area of square.

Now, one fourth of the area is not there in the L shape, so one-fourth of $1600cm^2$ is,

$\frac{1600}{4}= 400 cm^2$

Therefore, the area of L shape drawer is,

$1600-400=1200 cm^2$

Now, we can see that the diameter of each circular plate is, 20 cm. So the radius of circular plate is 10 cm. Let $A_2$ be the area of each circular plate, so,