Ask question

Ask question

All categories

3 years ago

6

Joni earned twice the amount of money babysitting on Saturday as she did on Wednesday. She earned $15 more on Friday than Wednes

day. She earned $50 on Sunday. Her total earnings for all four days were $345. How much more did Joni earn on Wednesday than on Sunday?

1 answer:

Sloan [31]3 years ago

8 0

The answer is B.) $20.

You might be interested in

Use the arithmetic sequence of numbers 1, 3, 5, 7, 9,.to find the following:

Rasek [7]

$a)\\\\
a_{n+1}-a_n=d\\
for\ n=1\\
a_2-a_1=d\\
d=3-1=2\ - difference\ between\ two\ consecutive\ terms\\\\
b)\\
a_n=a_1+(n-1)d\\
n=101\\
a_{101}=1+(101-1)*2\\
a_{101}=1+100*2=200+1=201\\\\
c)\\
Sn=\frac{a_1+a_n}{2}*n\\
n=20\\
a_n=a_{20}=1+(20-1)*2=1+38=39\\
Sn=\frac{1+39}{2}*20=400\ \ Sum\ of\ the\ first\ 20 \ numbers.$

6 0

3 years ago

A convex polyhedron has faces that consist of 30 squares, 20 triangles, and 12 pentagons. The polyhedron has 120 edges. How many

VLD [36.1K]

D)))))) which is 180

5 0

3 years ago

Read 2 more answers

14 is the same as ?i need help

Basile [38]

Same as 7*2=14 explain more what u need

4 0

3 years ago

What is the answer to 32.6 - n = 10.2

Alex_Xolod [135]

Answer: 22.4

Step-by-step explanation:

32.6 - 10.2 = 22.4

5 0

3 years ago

Please answer asap! show work!<br> 11. What is (f.g)(x)?<br> f(x) = x3 +3<br> g(x) = 2x2 + x - 1

Ksenya-84 [330]

Answer:

<u>2x⁵ + x⁴ - x³ + 6x² + 3x - 3</u>

Step-by-step explanation:

Given :

f(x) = x³ + 3
g(x) = 2x² + x - 1

Finding (f × g)(x) :

f(x) × g(x)
(x³ + 3)(2x² + x - 1)
2x⁵ + 6x² + x⁴ + 3x - x³ - 3
<u>2x⁵ + x⁴ - x³ + 6x² + 3x - 3</u>

6 0

2 years ago