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3 years ago

ANYBODY? EASY MATH!

Mathematics

1 answer:

ad-work [718]3 years ago

7 0

Well per dozen they are making 8$ per dozen cupcakes, and 7$ per dozen brownies

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19. Tom has 30 coins with a value of $3.30. If they are all nickels and quarters, how many of each kind of coin does

vova2212 [387]

Answer:

n = nickels, q = quarters

Equation 1: n+q=30

Equation 2: 0.05n+0.25q = 3.30

Step-by-step explanation:

From equation 1, n = 30-q

Substitute in Equation 2:

0.05(30-q) + 0.25q = 3.30

1.5 - 0.05q + 0.25q = 3.30

0.2q = 1.8

q = 9

Substitute in new equation:

n = 30-9

n = 21

It is important to note a nickel is worth 5 cents and a quarter is 25 cents. This helps us build the equations.

4 0

3 years ago

3) The measure of the angle which is equal to its supplement is

kari74 [83]

Answer:

Step-by-step explanation:

90 degrees

x + y = 180

x = y

x + x = 180

2x = 180

x = 180/2

x = 90

Both the angle and its supplement = 90

3 0

2 years ago

A clothing store salesperson makes a 5% commission on sales each day. If the salesperson sells $200 worth of clothes, how much d

vladimir2022 [97]

Answer:

10$

Step-by-step explanation:

7 0

3 years ago

Find the sum of the first 8 terms in the geometric sequence: 1, 3, 9, 27,

Butoxors [25]

The sum of the first 8 items in the geometric sequence:1, 3, 9, 27, ...etc is 3280.

Step-by-step explanation:

The given is,

sequence: 1,3,9,21,.. etc

Step:1

The given is based on multiplication of 3 to previous number,

( x - previous number, next number = 3 × $x$ )

First term : 1

Second term : 1 × 3 = 3

Third term : 3 × 3 = 9

Fourth term : 9 × 3 =27

Fifth term : 27 × 3 = 81

Sixth term : 81 × 3 = 243

Seventh term : 243 × 3 = 729

Eighth term : 729 × 3 = 2187

Step:2

Sum of first 8 terms $= 1 + 3 + 9 + 27 + 81 + 243 + 729 + 2187$

= 3280

Sum of first 8 terms = 3280

Result:

The sum of the first 8 items in the geometric sequence:1, 3, 9, 27, ...etc is 3280.

7 0

3 years ago

The cook has a variety of meals to prepare for a villa center’s residents. she averages 16 vegetarian meals every day of the wee

MrRissso [65]

Answer:

110

Step-by-step explanation:

for this problem you need to multiply the daily meals by 7(for each day of the week) getting a grand total of 112 meals per week. since the last digit is under 4, you round down so your final answer is 110

3 0

4 years ago