4 years ago

Pleaseeeee Help Meeee!!!!$1,200, 3.9%, 8 months

Mathematics

1 answer:

mihalych1998 [28]4 years ago

5 0

The interest is $31.202 and the amount is$1231.202.

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Solve the Solve the simultaneous equations 2x+3y=20 x+5y=31

zlopas [31]

Answer:

$x = 1$ and $y = 6$

Step-by-step explanation:

Given

$2x + 3y = 20$

$x + 5y = 31$

Required

Solve for x and y

Make x the subject in the second equation

$x = 31 - 5y$

Substitute 31 - 5y for x in $2x + 3y = 20$

$2(31 - 5y) + 3y = 20$

$62 - 10y + 3y = 20$

$62 - 7y = 20$

Collect like terms

$-7y = 20 - 62$

$-7y = - 42$

Solve for y

$y = \frac{-42}{-7}$

$y = 6$

Substitute 6 for y in $x = 31 - 5y$

$x = 31 - 5 * 6$

$x = 31 - 30$

$x = 1$

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3 years ago

You stand 20 feet from a flagpole and sight the top at a 40 degree angle of elavatuon. How tall is the pole?

LenKa [72]

Tan 40 = h / 20 where h = height of the pole.

h = 20 tan 40 = 16.78 feet

8 0

4 years ago

Which equation shows the commutative property of addition?

anygoal [31]

Answer:

4+3=3+4

Step-by-step explanation:

The commutative property of addition says that, the order in which you add two real numbers does not matter.

Let $a,b\in \mathbb R$ , then

a+b=b+a

From the given options;

4+3=3+4

shows the commutative property of addition

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4 years ago

Eight people were asked, "How many times have you been on an airplane?" Their responses are listed below.

Vadim26 [7]

Answer:

Range⇒ 8

Mode⇒ 3

Step-by-step explanation:

Hope this helps

8 0

3 years ago

Read 2 more answers

A woman earns $2900 per month and budgets $290 per month for food. What percent of her monthly income is spent on food?

Vladimir [108]

Earnings: $2900

Expenditure on food: $290

Percentage expenditure on food = Expenditure on food / Earnings times 100

= $290/$2900 * 100 = 10%

6 0

3 years ago