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grigory [225]
3 years ago
8

Explain why it is necessary to rename 4 1/4 if you subtract 3/4 from it?

Mathematics
2 answers:
Vinil7 [7]3 years ago
8 0
You need to rename 4 1/4 to an improper fraction when subtracting 3/4 from it because the numerator is 1 and 3 > 1 so you will have to rename it
borishaifa [10]3 years ago
8 0
Because if you take away the 4 wholes tge question would be 1/4 minus 3/4 and you cant do that
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If 2(6 + 3x) + 1 = - 5 + 3(x - 1), what is the value of x?
Stels [109]

Answer: x = -7

Step-by-step explanation:

2(6 + 3x) + 1 = - 5 + 3(x - 1)

(2) (6) + (2) (3x) + 1 = -5 + (3) (x) + (3) (-1)

12 + 6x + 1 = - 5 + 3x + - 1

( 6x ) + ( 12 - 1 ) = ( 3x ) + ( -5 + -3 )

6x + 13 = 3x - 8

6x + 13 - 3x = 3x - 8 - 3x

3x + 13 = -8

3x + 13 - 13 = -8 - 13

3x = -21

3x/3 -21/3

X = -7

5 0
2 years ago
Read 2 more answers
Solve the right triangle ABC with right angle C if B=30 degrees and c=10.
kenny6666 [7]
C=10, C=90°, B=30°, A+B+C=180°
A+30°+90°=180°⇒A=60°

cos30°=a/c
cos30°=a/10⇒a=cos30°*10
a<span>≃8.6602


c²=a²+b²⇒b²=c²-a²
b²=10²-8.6602²⇒b²=25
b=5
</span>
3 0
3 years ago
Read 2 more answers
What scale factor was applied to the first rectangle to get the resulting image? Enter your answer as a decimal in the box.
zysi [14]

Answer:


Step-by-step explanation:

the answer was 0.2

4 0
2 years ago
The perimeter of the original rectangle is 16 feet. A small rectangle has a length of 6. 2 feet and width of 1. 8 feet. A larger
ankoles [38]

The perimeter of the enlarged rectangle is 32 ft and the width of the larger rectangle is 3.6 ft.

<h3>What is perimeter of plane?</h3>

The measure of the boundary of a plane or shape is called its perimeter. The perimeter of a plane or shape is the sum of all the sides.

A small rectangle has a length of 6.2 feet and width of 1.8 feet. The parameter of this triangle is,

P_s=6.2+1.8\\P_s=8\rm\; ft

The small rectangle has a length of 6.2 and the larger rectangle has a length of 12.4 feet. Thus the scale factor of enlargement is,

r=\dfrac{12.4}{6.2}\\r=2

The perimeter of the original rectangle is 16 feet and scale factor is 2. Thus, the perimeter of the enlarged rectangle is,

P_l=2\times16\\P_l=32\rm\; ft

The small rectangle has width of 1.8 feet and scale factor is 2. Thus, the width of the larger rectangle is,

w_l=1.8\times2\\w_1=3.6\rm\; ft

Hence, the perimeter of the enlarged rectangle is 32 ft and the width of the larger rectangle is 3.6 ft.

Learn more about the perimeter of plane here;

brainly.com/question/1662271

4 0
1 year ago
What expression is equivalent to the expression -8(4x - 9y) + 8x - 4y?​
kifflom [539]

Answer:

=−24x+68y

Step-by-step explanation:

8 0
3 years ago
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