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mariarad [96]
2 years ago
11

-2x - 10 =15 help me plzzzz

Mathematics
2 answers:
lord [1]2 years ago
8 0
-2x-10=15
-2x=(15+10)
x=(15+10)/(-2)
Dima020 [189]2 years ago
6 0

Answer:

x = -12.5

Step-by-step explanation:

Solve :  -2x - 10 =15

-2x - 10 = 15

-2x = 15 + 10

-2x = 25

x = -25/2

x = -12.5

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you get a 1 dollar coupon for every 3 salads you buy. What is the least number of salads you could buy to get 10 dollars in coup
miskamm [114]

Answer:

30 salads.

Step-by-step explanation:

If you can get a dollar coupon for 3 salads

You can just multiply it by 10 to get ten dollars for 30 salads

6 0
3 years ago
Need the answer ASAP
Evgesh-ka [11]
Anwser:

22.5 or 5/22 or 30

Step-by-step Explanation:

-2 and -2
SSS
-2+-2= -4

-4 x 30= -120

-120 divided by 4 is 30
but that’s not a fraction so you do

22.5 or 5/22

-2 x -2 x 30=

7 0
3 years ago
Vending machines can be adjusted to reject coins above and below certain weights. The weights of legal U.S. quarters have a norm
tigry1 [53]

Answer: The percentage of legal quarters will be rejected by the vending machine = 2.275%

Step-by-step explanation:

Given: The weights of legal U.S. quarters have a normal distribution with a mean of 5.67 grams and a standard deviation of 0.07 gram.

Let x be the weights of legal U.S. quarters .

Required probability: P(x5.81)

=P(\dfrac{x-\mu}{\sigma}\dfrac{5.81-5.67}{0.07})\\\\=P(z2)\approx0.02275    \ \ \ [By\  P-value\ calculator]

The percentage of legal quarters will be rejected by the vending machine = 2.275%

5 0
2 years ago
pllllllls I need help right triangle and trigonometry special right triangles find the value of each variable​
yanalaym [24]

\huge {\mathfrak{Answer :  }}

we know,

\boxed{\cos( \theta)  =  \dfrac{base}{hypotenuse}}

so,

  • \cos(30)  =  \dfrac{24}{x}

  • \dfrac{ \sqrt{3} }{2}  =  \dfrac{24}{x}

  • x =  \dfrac{24 \times 2}{ \sqrt{3} }

  • x = 8 \sqrt{3}  \times 2

  • x = 16 \sqrt{3}

now,

\boxed{ \tan( \theta) =  \frac{perpendcular}{base}  }

  • \tan(30)  =  \dfrac{y}{24}

  • \dfrac{1}{ \sqrt{3} }  =  \dfrac{y}{24}

  • y =   \dfrac{24}{ \sqrt{3} }

  • y = 8 \sqrt{3}
6 0
2 years ago
Help asap 80 points!
Montano1993 [528]

Answer:

[-3, 3]

Step-by-step explanation:

The function/ graph is defined from -3 to 3, inclusive of those values

3 0
2 years ago
Read 2 more answers
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