3 years ago

3 questions

Mathematics

2 answers:

klasskru [66]3 years ago

8 0

Number 1 x < -5. Number 2 b < -5. Number 3 a><span>1
Hope I helped! </span><span />

frutty [35]3 years ago

6 0

1) add 7 to both sides and get -5....so -5 >x
2) add 7 to both sides.....so get b<-5
3) add 17 to both side...so get z>1

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nirvana33 [79]

I’d say 21 and -1 :)
21 * -1 = -21
21 - 1 = 20

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2 years ago

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There are 56 m&ms in a bag. They are all red or blue with a ratio of 3:4. How many blue m&ms are there?

ser-zykov [4K]

Answer:

Step-by-step explanation:

3+4 = 7, 56/7 = 8, 8 * 4 = 32

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3 years ago

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Eugene walked all the way to school at 3 mph then realized she forgot her math book (how could she?!), so she ran back at 7 mph.

Fynjy0 [20]

$\text{Answer: }1\frac{23}{40}\ miles\text{ far she live from school.}$

Explanation:

Since we have given that

Speed at which Eugene walked all the way to school = 3 mph

After realizing that she forgot her math book, she ran back

Speed at which Eugene walked back to her house = 7 mph

Let the distance between her house and her school be x

According to question,

$\frac{x}{3}+\frac{x}{7}=\frac{45}{60}\\\\\frac{7x+3x}{21}=\frac{3}{4}\\\\\frac{10x}{21}=\frac{3}{4}\\\\x=\frac{3\times 63}{4\times 10}=\frac{63}{40}=1\frac{23}{40}\ miles.$

Hence,

$1\frac{23}{40}\ miles\text{ far she live from school.}$

8 0

2 years ago

Make an equation that would equal to 6, numbers u can use is 4,9,1,5

steposvetlana [31]

Write down : 2, +, 3 + 1

8 0

3 years ago

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At the building site there are 16 pallets with sacks of cement the total weight of all the pallets and cement is 4856 pounds eac

inysia [295]

The first thing we must do for this case is to define a variable.
We have then:
x: weight of each pallet with cement
We then have the following equation:
16x = 4856
Clearing x we have:
x = (4856) / (16)
x = 303.5 punds
Answer:
each pallet with cement weigh:
x = 303.5 punds

6 0

3 years ago