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2 years ago

I don't understand this please help

Mathematics

2 answers:

inna [77]2 years ago

8 0

$9.10 do you need to know explanation?

LUCKY_DIMON [66]2 years ago

7 0

Answer:

$9.10

Step-by-step explanation:

you just need to multiply 6.50 by 2 and then take 30% off of it which is 9.10

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The spiders and ants in Aunt Mellys attic have a total of 152 legs and 22 heads. Spiders have 8 legs and ants have 6 legs. How m

Scorpion4ik [409]

Answer:

10 spiders and 12 ants

Step-by-step explanation:

You need to create two equations

s = # of spiders

a = # of ants

s + a = 22 heads

since each spider and ant has one head

8s + 6a = 152 legs

since every spider has 8 legs and every ant has 6

s + a = 22 can be turned into s = 22 - a

now use substitution

8(22 - a) + 6a = 152

176 - 8a + 6a = 152

176 - 2a = 152

24 = 2a

a = 12

now that you have the number of ants you can solve for the number of spiders

s + a = 22

s + 12 = 22

s = 10

6 0

2 years ago

The common ratio in a geometric series is 0.5 and the first term is 256. Find the sum of the first 6 terms in the series

Svetach [21]

Answer:

The sum of the first 6 terms of the series is 504.

Step-by-step explanation:

Given that,

Common ratio in a geometric series is, r = 0.5

First term of the series, a = 256

We need to find the sum of the first 6 terms in the series. If a and r area the first term and common ratio of a series, then the series becomes:

$a,ar^1,ar^2,ar^3......$

The sum of n terms of a GP is given by :

$S_n=\dfrac{a(1-r^n)}{1-r}$

Here, n = 6

$S_n=\dfrac{256\times (1-(0.5)^6)}{1-0.5}\\\\S_n=504$

So, the sum of the first 6 terms of the series is 504.

4 0

3 years ago

Table 2

astra-53 [7]

The answer is 3rd one

3 0

3 years ago

Read 2 more answers

Lori bought a shirt and a hat at a half off sale. If she spent a total of $21 on the two items, what was the original price of t

Bad White [126]

Do 21 divided by 2 and you’ll get 10.5 so the original price was $10 and 50 cents

6 0

3 years ago

Simplify square root 3y diviede by square root of y

Nataly [62]

Answer:

Step-by-step explanation:

√3y/√y

= √(3y/y)

= √3

5 0

3 years ago