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SpyIntel [72]
4 years ago
14

Write the following sentence using mathematical symbols the sum of 7 and x is -13

Mathematics
1 answer:
Dominik [7]4 years ago
6 0
7 + x = -13 would be the equation.
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Could someone please help me
vichka [17]

Answer:

<h2>\huge \: x  = 7 {0}^{o}  \\  \:  \huge \: y = 3 {0}^{o}  \\  \huge z =  {20}^{o}</h2>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • triangles
  • equation
  • PEMDAS
<h3>tips and formulas:</h3>
  • a straight line contains 180°
  • a triangle contains 180°
<h3>let's solve:</h3>

equation for x

according to the question

110°+x=180°

x=180°-110°

x=70°

equation for y

according to the question

11 {0}^{o}  +  {40}^{o}  + y = 18 {0}^{o}

15 {0}^{o} + y  = 180^{o}

y = 18 {0}^{o}  - 15 {0}^{o}

y = 3 {0}^{o}

equation for z

according to the question

90°+x+z=180°

90°+70°+z=180° (since x=70°)

160°+z=180°

z=180°-160°

z=20°

7 0
3 years ago
Read 2 more answers
What is C <br> Solve for C
soldi70 [24.7K]

Answer:

Step-by-step explanation:

68 degree F to C.

9/5c+32=68

C=20

6 0
3 years ago
Read 2 more answers
Help mee plz... i ' m in trouble<br><br>ans 2,3&amp;4
motikmotik

Step-by-step explanation:

2) a= -3/8 and b= -5/3

a×b= b×a

<u>-3</u><u> </u>× <u> </u><u>-5</u><u> </u> = <u> </u><u>-5</u><u> </u> × <u> </u><u>-3</u><u> </u>

8. 3. 3. 8

<u> </u><u>1</u><u>5</u><u> </u> = <u> </u><u>1</u><u>5</u><u> </u>

24. 24

3)a=8/11 and b= -6/11

a×b=b×a

<u> </u><u>8</u><u> </u> × <u> </u><u>-6</u><u> </u> = <u>-6</u><u> </u> × <u> </u><u>8</u><u> </u>

11. 11. 11. 11

<u> </u><u>-48</u><u> </u> = <u> </u><u>-48</u><u> </u>

121. 121

4) a= -9/15 and b= -7/2

a×b=b×a

<u> </u><u>-9</u><u> </u> × <u> </u><u>-7</u><u> </u> = <u> </u><u>-7</u><u> </u> × <u> </u><u>-9</u><u> </u>

15. 2. 2. 15

<u> </u><u>6</u><u>3</u><u> </u> = <u> </u><u>6</u><u>3</u><u> </u> , let's divide both by 3

30. 30

<u> </u><u>2</u><u>1</u><u> </u>= <u> </u><u>2</u><u>1</u><u> </u>

10. 10

5 0
3 years ago
What is the rule for dividing a fraction explain.
AleksAgata [21]

Answer:

When students see a number that ends in an even digit, they should know the number can be divided into two evenly. However, numbers that end in odd digits can be divided by two, they'll just have a remainder or decimal.

Step-by-step explanation:

4 0
3 years ago
What is 3,350,000 in scientific notation?
olganol [36]

Answer:

10^4 or 3.5

Step-by-step explanation:

5 0
3 years ago
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