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3 years ago

Can anyone help me? This is really hard

Mathematics

1 answer:

Ludmilka [50]3 years ago

6 0

I believe B and C are the answers. I’m sry if I’m wrong but I’m probably right.

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The fee to rent a hall for a wedding is $1450 plus $50 per hour. For how many hours can it be rented forband stay within a budge

inysia [295]

2,100-1,450= 650
650➗50= 13
you can rent 13 hours.

7 0

3 years ago

(12) Which equation has irrational solutions? Group of answer choices

Drupady [299]

Answer:

9(x+3)²=27

Step-by-step explanation:

hello :

9(x+3)²=27 means : (x+3)²=27/9

(x+3)²=3 because 3 is not the perfect square

8 0

3 years ago

What is the slope of the line in the graph show below

ANEK [815]

Answer:

y = -2x + 3

Step-by-step explanation:

3 0

4 years ago

A jeweler had a fixed amount of gold to make bracelets and necklaces. The amount of gold in each bracelet is 6 grams and the amo

blagie [28]

Number of bracelets made is 4 and number of necklace made is 8

Solution:

Let "b" be the number of bracelets made

Let "n" be the number of necklace made

amount of gold in 1 bracelet = 6 grams

amount of gold in 1 necklace = 18 grams

Given that he made 4 more necklaces than bracelets

number of necklace made = 4 + number of bracelets made

n = 4 + b -------- eqn 1

The jeweler used 168 grams of gold

Therefore, we can frame a equation as:

number of bracelets made x amount of gold in 1 bracelet + number of necklace made x amount of gold in 1 necklace = 168

$b \times 6 + n \times 18 = 168$

6b + 18n = 168 ---------- eqn 2

Let us solve eqn 1 and eqn 2

Substitute eqn 1 in eqn 2

6b + 18(4 + b) = 168

6b + 72 + 18b = 168

24b = 168 - 72

24b = 96

b = 4

From eqn 1,

n = 4 + b

n = 4 + 4

n = 8

Thus number of bracelets made is 4 and number of necklace made is 8

4 0

3 years ago

in chemistry class Andrew has earned scores of 64 69 and 73 on three tests he must maintain an average of 72

olganol [36]

You haven't told me what the question is. But I put the mouse
to my forehead, closed my eyes, took a deep breath, and I could
see it shimmering in my mind's eye. It was quite fuzzy, but I think
the question is

   "What score does Andrew need on the next test
   in order to raise his average to 72% ?"

The whole experience drew an incredible amount of energy
out of me, and the mouse is a total wreck. So we'll just go ahead
and answer that one. I hope it's the correct question.

The average score on 4 tests is

   (1/4) (the sum of all the scores) .

In order for Andrew to have a 72% average on 4 tests,
the sum of the 4 scores must be

   (4) x (72%) = 288% .

Out of that total that he needs, he already has

(64% + 69% + 73%) = 206%

on the first three tests.

So in order to average 72% for all 4 tests,
he'll need to score

   (288% - 206%) = 82%

on the fourth one.

6 0

3 years ago