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Triss [41]
3 years ago
5

anna is having a party . she needs 15 invitations. the invitations come in packages of 7 . how many packages of invitations does

anna need to buy
Mathematics
2 answers:
lorasvet [3.4K]3 years ago
8 0
3 packages so there would be at least 21 invitiations
Keith_Richards [23]3 years ago
7 0
She needs to buy 3. If she only bought 2, she would have 14, since 7 multiplied by 2 is 14. But she would be missing one. And the invitations come in packages of 7, so you can't take a package and split it or something. So, even though 3 packages will be more than enough, she will need 3 packages. I hope u got this! If you need further help, then plz don't feel afraid. I don't bite! :]
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PERSON WHO GETS THIS RIGHT WILL GET A LOTTT OF POINTS 60+
jarptica [38.1K]

Answer:

See below.

Step-by-step explanation:

a.

x = cost of adult ticket

y = cost of student ticket

cost of adult ticket is twice the cost of a student ticket

x = 2y

number of adult tickets = 64

number of student tickets = 132

cost of all adult tickets = 64x

cost of all student tickets = 132y

cost of all adult and student tickets combined: 64x + 132y

cost of all adult and student tickets combined: 1040

This gives us the equation:

64x + 132y = 1040

b.

Use substitution to solve the system of equations. Since x = 2y, where you see x in the second equation, substitute it with 2y.

64(2y) + 132y = 1040

128y + 132y = 1040

260y = 1040

y = 1040/260

y = 4

x = 2y = 2(4) = 8

adult ticket: $8

student ticket: $4

5 0
3 years ago
A bird was perched on a tree at a height of 15 feet. The bird then saw food on a branch below and dropped down 61/3 feet. What i
natka813 [3]

The current height of the bird is -16/3

The bird perched at a height of 15 feet

The bird dropped to a height of 61/3 feet when it saw a food

The current height can be calculated as follows

= 15 - 61/3

= 45-61/3

= -16/3

Hence the current height of the bird is -16/3

Read more on height here

brainly.com/question/23597695?referrer=searchResults

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5 0
2 years ago
Quadrilateral KLMN is similar to quadrilateral WXYZ, Which statement about these quadrilaterals must be true?
VARVARA [1.3K]

Answer:angle nkl is congruent to angle zwx

Step-by-step explanation: it is equal so it matches

7 0
3 years ago
What is the ending amount for a deposit of $2,000 in an account with a 1.34% interest rate, compounding semiannually, in 10 year
Simora [160]

Answer:

$2,285.76

Step-by-step explanation:

Year Year Interest Total Interest Balance

1 $26.89 $26.89 $2,026.89

2 $27.25 $54.14 $2,054.14

3 $27.62 $81.76 $2,081.76

4 $27.99 $109.75 $2,109.75

5 $28.37 $138.11 $2,138.11

6 $28.75 $166.86 $2,166.86

7 $29.13 $195.99 $2,195.99

8 $29.52 $225.52 $2,225.52

9 $29.92 $255.44 $2,255.44

10 $30.32 $285.76 $2,285.76

Base amount: $2,000.00

Interest Rate: 1.34% (yearly)

Effective Annual Rate: 1.34%

Calculation period: 10 years

6 0
3 years ago
Blake ran three miles for his workout today. He ran the first mile in 7.2 minutes, the second mile in 7.35 minutes, and the thir
NeTakaya

Answer:

22.05 minutes

Step-by-step explanation:

7.2 + 7.35 + 7.5 = 22.05 minutes

6 0
2 years ago
Read 2 more answers
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