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monitta
3 years ago
15

Help me on these 2 please

Mathematics
1 answer:
Sonbull [250]3 years ago
8 0
The first on is y=3x and the second one is 21
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21) Martha's aunt bought $26 for 20 plants. Some were
a_sh-v [17]

Answer:

8 carnations and 12 zinnias

Step-by-step explanation:

4 0
2 years ago
Which proportion can you use to find the value of a?
Ugo [173]

<u>Given</u>:

The given triangle is a similar triangle.

The length of the hypotenuse is 18 units.

The length of the leg is a.

The length of the part of the hypotenuse is 16 units.

We need to determine the proportion used to find the value of a.

<u>Proportion to find the value of a:</u>

We shall find the proportion to determine the value of a using the geometric mean leg rule.

Applying the leg rule, we have;

$\frac{\text { hypotenuse }}{\text { leg }}=\frac{\text { leg }}{\text { part }}$

Substituting the values of hypotenuse, leg and part, we get;

\frac{18}{a}=\frac{a}{16}

Thus, the proportion used to find the value of a is \frac{18}{a}=\frac{a}{16}

Hence, Option D is the correct answer.

6 0
3 years ago
Felix says that 2,000 + 400 + 70 is another way to write 2,407. What is Felix’s error
Umnica [9.8K]

2,000 + 400 + 70 would equal 2,470.

The correct way to write it would be 2,000 + 400 + 7

6 0
3 years ago
Read 2 more answers
2y=-x+9<br>3×-6y=-15 whats the solution to the system​
liq [111]

Answer:

Step-by-step explanation:

2y = -x +9

3x - 6y = -15

The solution is the value of x and y that will make the two equations true in the same time.

3x-6y = -15;  divide both sides by 3

x-2y = -5; substitute 2y for -x+9 because the first equation tell us they are equal

x-(-x+9) = -5; open parenthesis

x+x-9 = -5 ; add 9 to both sides  and combine like terms

2x = -5 +9; 2x = 4; divide both sides by 2

x= 2

Substitute x for 2

2y = -x+9 ; 2y = -2 +9 ; 2y = 7; y = 7/2 = 3.5

Solution is (2, 3.5)

8 0
2 years ago
Read 2 more answers
What is the simplified form of (6^2+ 4) - 15?
TEA [102]

Answer:

25

Step-by-step explanation:

(6^2+4)−15

(36+4)−15

40−15

25

6 0
3 years ago
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