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3 years ago

Instructions

Mathematics

1 answer:

Over [174]3 years ago

3 0

Answer:

1.9( j + 8 + j)

2. 9(4 j) + 9 (8 + j)

2. 45 j + 72

Step-by-step explanation:

1.nine times, open parentheses four times j plus eight plus j

2. 9(5 j + 8)=

Sarah had a total amount of 45 teeth meaning that her neighbor gave Sarah $225.

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Steve needs to take at least 24 milligrams of calcium, 15 milligrams of iron, and 16 milligrams of vitamins. Which ordered pairs

Julli [10]

The complete question in the attached figure

we have that
x----------------> r<span>epresents the number of spoonfuls of brand A
</span>y----------------> represents the number of spoonfuls of brand B
<span>Brand A---------------- > Calcium. Iron Vitamins ------ > 5 4 7 </span><span>milligrams
</span>Brand B---------------- > Calcium. Iron Vitamins ------ > 4 6 4 milligrams

<span>Steve needs to take at least
</span>Calcium milligrams >=24
Iron milligrams >=15
Vitamins milligrams >=16

I proceed to calculate the system inequalities

for Calcium
5x+4y>=24

for iron
4x+6y>=15

for Vitamins
7x+4y>=16

using a graph tool to solve the system of inequalities
see the attached figure

the answer is the point (1,5) and the point (4,1) are solution

5 0

4 years ago

Wot is sero pluus won

olganol [36]

It is one/1 hope that helps.

8 0

4 years ago

Read 2 more answers

Are 3/4 and 12/9 equivalent explain your answer?

julia-pushkina [17]

yes

12/9=4/3

we used reciprocal here

7 0

3 years ago

How many times can 14 go into 8574?

bearhunter [10]

612.4285714285714 is the answer

8 0

3 years ago

Guys please help me

poizon [28]

<h3>Answer: -4</h3>

==========================================================

Explanation:

We can pick any two rows from the table to get the (x,y) points needed to find the slope.

Let's say we pick the second and third rows

Subtract the y values: 14-6 = 8

Subtract the x values in the same order: 1-3 = -2

Divide the differences: 8/(-2) = -4

The slope is -4

--------------------------------------------------

You can use the slope formula

Let's say the points are (x1,y1) = (1,14) and (3,6)

m = (y2-y1)/(x2-x1)

m = (6-14)/(3-1)

m = -8/2

m = -4

It's the same basic idea as the previous section. You subtract the y values together (y2-y1) and the x values together (x2-x1) and divide the differences to get m. The order of subtraction doesn't matter as long as you stay consistent. If you do something like y2-y1 and x1-x2, then you'll get the wrong slope value.

3 0

3 years ago