A=3B
4.35A+5.40B=780.95
Substitute 3B into A for the second equation:
4.35(3B)+5.40B=780.90
13.05B+5.40B=780.90
18.45B=780.90
B=42.33
Plug into equation 1:
A=3B
A=3(42.33)
A=126.98

7 0

3 years ago

Read 2 more answers

2k-6-7+3k = 48 need the answer!

Radda [10]

$\huge{\fbox{\sf{ k= 12.2}}}$

<u>Step by step explanation:</u>

Step 1:

$2k-6-7+3k = 48$

Step 2:

$5k - 13 = 48$

Step 3:

$5k = 48 + 13$

Step 4:

$5k = 61$

Step 6:

$k = 12.2✓$

3 0

3 years ago

Read 2 more answers

Screenshot with answers included A circle has a radius of 1 cm.

lora16 [44]

Area = $\pi r^{2}$
area = $\pi$ x 1 x 1 = $\pi$

Circumference = $2\pi r$
Circumference = 2 x $\pi$ x1
Circumference = 2 $\pi$

The circumference is greater than the area

6 0

3 years ago