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zheka24 [161]
3 years ago
8

What value of a makes the equation true 3(a+1.5)=-1.5

Mathematics
2 answers:
Mariana [72]3 years ago
7 0
3* (a + 1,5) = - 1,5     [:3
a + 1.5 = - 0,5
a = - 0,5 - 1.5 = -2


S_A_V [24]3 years ago
4 0

Answer:

-2 teehee iready tingzzzz >:)

Step-by-step explanation:

You might be interested in
You have $4.10 in nickels, dimes, and quarters. If you have twice as many dimes as quarters, and five more nickels than dimes, h
lutik1710 [3]

For this case, the first thing to do is define variables.

We have then:

  • <em>x: number of nickels </em>
  • <em>y: number of dimes </em>
  • <em>z: number of quarters </em>

We write now the system of equations:

0.05x + 0.1y + 0.25z = 4.10\\y = 2z\\x = y + 5

Then rewriting the equations we have:

0.05 (2z + 5) + 0.1 (2z) + 0.25z = 4.1\\0.05 (2z + 5) + 0.1 (2z) + 0.25z = 4.1\\0.1z + 0.25 + 0.2z + 0.25z = 4.1\\0.55z = 4.1-0.25

z = \frac {3.85} {0.55}\\z = 7

Then, substituting values we have:

y = 2 (7)\\y = 14

Finally:

x = 14 + 5\\x = 19

Answer:

19 nickels

14 dimes

7 quarters

6 0
3 years ago
Off Topic: when you delete a place on Life360, does the other person in your circle get the notification that you have remove it
Komok [63]
I honestly don’t think so
8 0
2 years ago
I request help please,and thank you.
mezya [45]

Answer:

8)55°

9)35°

10)55°

11)69°

12)64°

Step-by-step explanation:

8)180-125=55

9)90-55=35

10)180-125=55

11)180-111=69

12)45+69=116

180-166=64

6 0
2 years ago
2. Choose the graph that shows the solution of the inequality on the number line
horsena [70]

Answer:

Number line 3 also known as [C]

Step-by-step explanation:

<em>Given that:</em>

<em>c ≤ </em>-1

Knowing that:

≤  = Less than or equal to

Now substitute into the equation:

C less than or equal to -1

Thus, it going left on a number line.

The only number line with left is [A] and [C]

Since ≤  = Less than or equal to -1

then, it including -1

also known as a closed circle means the number is included and an open circle means it is not.

Hence, it closed circle.

Thus, the answer is [C]

<u><em>Kavinsky</em></u>

4 0
1 year ago
<img src="https://tex.z-dn.net/?f=%28v%2B6%29%5E%7B2%7D%3D2v%5E%7B2%7D%2B14v%2B12" id="TexFormula1" title="(v+6)^{2}=2v^{2}+14v+
timofeeve [1]

Answer:

v=-6 or 4

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
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