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3 years ago

15

Please help me with this question.

2 answers:

Eduardwww [97]3 years ago

5 0

Answer:

the answer is 11.5

Step-by-step explanation:

2x-9=14

2x = 23

x = 11.5

Andreas93 [3]3 years ago

4 0

Answer:

La respuesta es 11,5

Ya que usas esta operación:

2x-9=14

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Solve the following absolute value equations. Show the solution set and check your answers. |0.3-3/5k|-0.4=1.2

9966 [12]

Answer:

**The equation is not clear, so I have provided both options**

<h3><u>Option 1</u></h3>

$\left|0.3-\dfrac{3}{5}k\right|-0.4=1.2$

$\implies \left|0.3-\dfrac{3}{5}k\right|=1.6$

<u>Solution 1</u>

$\implies 0.3-\dfrac{3}{5}k=1.6$

$\implies -\dfrac{3}{5}k=1.3$

$\implies k=-\dfrac{13}{6}$

<u>Solution 2</u>

$\implies -(0.3-\dfrac{3}{5}k)=1.6$

$\implies -0.3+\dfrac{3}{5}k=1.6$

$\implies \dfrac{3}{5}k=1.9$

$\implies k=\dfrac{19}{6}$

<h3><u>Option 2</u></h3>

$\left|0.3-\dfrac{3}{5k}\right|-0.4=1.2$

$\implies \left|0.3-\dfrac{3}{5k}\right|=1.6$

<u>Solution 1</u>

$\implies 0.3-\dfrac{3}{5k}=1.6$

$\implies -\dfrac{3}{5k}=1.3$

$\implies -3=6.5k$

$\implies k=-\dfrac{6}{13}$

<u>Solution 2</u>

$\implies -(0.3-\dfrac{3}{5k})=1.6$

$\implies -0.3+\dfrac{3}{5k}=1.6$

$\implies \dfrac{3}{5k}=1.9$

$\implies 3=9.5k$

$\implies k=\dfrac{6}{19}$

6 0

2 years ago

Matt has 20 marbles in a bag. 15 are red, 2 are blue, and 3 are green. what is the probability that Matt will pick a blue marble

marta [7]

Answer=10%

15+2+3=20
2 of which are blue.
Put it over 100, 20x5=100 so 2x5=10

4 0

3 years ago

Read 2 more answers

Estimate plz:<br> 137,638+52,091<br> Explain plz how to do it

IceJOKER [234]

The best way to estimate it is to do "written addition" in your head, adding 1+8, then 9+3, all the way until you get to the front. the actual answer is 189,459, so your answer should be somewhere close to that.

7 0

3 years ago

Read 2 more answers

lidiya [134]

Answer:

x = 1/4

Step-by-step explanation:

<u>Calculations:</u>

$7(x-3)+3(4-x)=-8$

$7x-21+12-3x=-8$

$4x-9=-8$

$4x=1$

$x=\frac{1}{4}$

7 0

2 years ago

IF YOU HELP ME WITH THIS I WILL HELP YOU WITH SOMETHING IF YOU NEED HELP!! State if each triangle is a right triangle. The trian

juin [17]

Answer:

6 - yup 7 - nope

Step-by-step explanation:

If the triangle satisfies the pythagoreon theorem, then it is a right triangle

so 6 is a yeah

then for 7, the hypotunese always is greater than the legs in a right triangle, so 7 is no

4 0

3 years ago