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VLD [36.1K]
3 years ago
11

When Marla rounded 19.95 to the nearest tenth shi found the number changed to 20 is this correct explain

Mathematics
1 answer:
valentinak56 [21]3 years ago
7 0
Yes this is correct..the rule is: to round up if the number is over 50, round down if the answer is below fifty, like 44...
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The farmer looks out in the barnyard and Cesar pigs and the chickens. He says to his daughter, “ I count 40 heads in 100 feet. H
notsponge [240]

Answer:

There are  10 pigs and 30 chickens

Step-by-step explanation:

Let the number of pigs be x

let the number of chickens be y

Then there are 40 heads . So the total number of pigs and chickens is 40

x + y = 40-----------------------(1)

We know that pigs have 4 legs and chickens have 2 legs

4x + 2y = 100----------------------(2)

Solving (1) and (2)

multiply  (1) by 2

2x + 2y = 80-------------------------(3)

subtract (3) from (2)

4x + 2y = 100

2x + 2y = 80

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

2x = 20

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

x = \frac{20}{2}

x = 10

Now Substituting x in (1), we get

10 + y = 40

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olga2289 [7]
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5 0
3 years ago
For the rectangle provided, the length of this rectangle is 5 mm longer than its width. The perimeter of this rectangle is more
olya-2409 [2.1K]
A) length= w+5
width=w
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Hope this helps!
3 0
3 years ago
Which of the lines whose equations are given below is perpendicular to 3x - 12y = 10?
Dmitriy789 [7]

Answer:

1. 8x + 2y = 16

Step-by-step explanation:

3x - 12y = 10

12y = 3x - 10

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3 years ago
I need help answer ASAP I’m confused
katrin [286]

Answer:

Step-by-step explanation:

You can plug in the 294 for A and solve

4 0
4 years ago
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