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2 years ago

What is 19 dived by 2/5 A 3 4/5 B 7 3/5 c 4 7 1/2 d 95

Mathematics

2 answers:

gladu [14]2 years ago

4 0

Answer: answer c

Step-by-step explanation: 4 7 1/2 hope

brainiest?

Anvisha [2.4K]2 years ago

3 0

Answer:

Option C: 47 1/2

Step-by-step explanation:

19/0.4 = 47.5

Hope this helped! Have a nice day! :)

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X^7+5x+9 <br> what is f(-1) for the polynomial

krek1111 [17]

Answer:

-1 -5 +9 = 3

Step-by-step explanation:

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3 years ago

A pet store sells goldfish and hermit crabs,

Elis [28]

Answer:

$Cost = \$28$

Step-by-step explanation:

Given

Represent Goldfish with g and hermit crabs with h.

The first statement, we have:

$7g + 3h = 26$

The second statement, we have:

$4g + 5h = 28$

Required

Determine the selling price of 6 goldfish and 4 hermit crabs

The equations are:

$7g + 3h = 26$ --- (1)

$4g + 5h = 28$ --- (2)

Make g the subject in (2)

$4g + 5h = 28$

$4g = 28 - 5h$

Divide both sides by 4

$g = \frac{1}{4}(28 - 5h)$

Substitute $\frac{1}{4}(28 - 5h)$ for g in (1)

$7g + 3h = 26$

$7(\frac{1}{4}(28 - 5h)) + 3h = 26$

$\frac{7}{4}(28 - 5h) + 3h = 26$

Multiply through by 4

$4 * \frac{7}{4}(28 - 5h) + 4*3h = 26*4$

$7(28 - 5h) + 4*3h = 26*4$

Open bracket

$196 - 35h + 12h = 104$

$196 -23h = 104$

Collect Like Terms

$-23h = 104-196$

$-23h = -92$

Make h the subject

$h = \frac{-92}{-23}$

$h = \frac{92}{23}$

$h = 4$

Substitute 4 for h in $g = \frac{1}{4}(28 - 5h)$

$g = \frac{1}{4}(28 - 5*4)$

$g = \frac{1}{4}(28 - 20)$

$g = \frac{1}{4}(8)$

$g = 2$

This implies that:

1 goldfish = $2

1 hermit crab = $4

The cost of 6 goldfish and 4 hermit crabs is:

$Cost = 6g + 4h$

$Cost = 6*\$2 + 4*\$4$

$Cost = \$12 + \$16$

$Cost = \$28$

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3 years ago

What causes global convection current to form

hoa [83]

Answer:

Hope this helped :)

Step-by-step explanation:

Convection flows structure in light of the fact that a warmed liquid grows, getting less thick. The less-thick warmed liquid ascents from the warmth source. ... For example, a hot radiator warms the air promptly around it. The air ascends toward the roof, pulling cooler air down from the roof into the radiator to be warmed.

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3 years ago

What is 2 3/10 as a decimal

Lesechka [4]

2.3 will be your answer

2 for the 2 (whole)
.3 is 3/10

if it was 3/100, it will be .03

hope this helps

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3 years ago

Read 2 more answers

Which expression is equivalent to (x+4)^2

Inessa05 [86]

Answer:

(x+4)(x+4)