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2 years ago

Please help me I have no idea what I am doing so could u please help me with this it’s from Khan academy

Mathematics

2 answers:

Elena L [17]2 years ago

4 0

Answer:

The answer is switch direction

Step-by-step explanation:

since the arrow is pointing to the left: <--------

and you don't change the symbol, because when it is greater than or equal to or less than or equal to, it's always a closed circle

Natasha2012 [34]2 years ago

3 0

Answer:

k12

Step-by-step explanation:

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Analyze the diagram below and complete the instructions that follow.

dolphi86 [110]

Answer:

x = 50, y = 10

Step-by-step explanation:

$\\(5x-100)+(x-20) = 180 => 6x = 300 => x = 50\\(3y)+(y+140) = 180 => 4y = 40 => y = 10$

3 0

3 years ago

Solve the equation. −3(y+5)=15

e-lub [12.9K]

Divide both sides by -3

y + 5 = -15/3

Simplify 15/3 to 5

y + 5 = -5

Subtract 5 from both sides

y = -5 - 5

Simplify -5 - 5 to -10

y = -10

8 0

3 years ago

Read 2 more answers

7. Explain the difference between whole numbers and counting numbers.<br>(2 marks)<br>Your answer

Burka [1]

Counting numbers is like the numbers 1,2,3,4,5 and so on they were numbers you were probably taught to count to like to count through 1-10 or whatever. Counting numbers mean to count since they do have the word counting in them.

Whole number just means a number with no fraction or intger also 1 - infinity

3 0

3 years ago

Is chef is going to use a mixture of two brands of Italian dressing the first brand contains 9% vinegar and the second one conta

miskamm [114]

Answer:

80 of vinegar

160 of dressing

Explanation is below.

Hope this helps :)

4 0

2 years ago

PLEASE HELP ASAP 2 QUESTION ON CONGRUENT TRIANGLES I WILL GIVE BRAINIEST

pantera1 [17]

Answer:

See explanation

Step-by-step explanation:

Q11. Statement Reason

1. $\overrightarrow {MO}$ bisects $\angle PMN$ Given

2. $\angle PMO\cong \angle NMO$ Definition of angle bisector

3. $\overline{MO}\cong \overline{MO}$ Reflexive property

4. $\overrightarrow {OM}$ bisects $\angle PON$ Given

5. $\angle POM\cong \angle NOM$ Definition of angle bisector

6. $\triangle PMO\cong \triangle NMO$ ASA postulate

Q13.

1. Consider triangles ACB and DCE. In these triangles,

$\overline{BC}\cong \overline{EC}$ - given;
$\overline{AC}\cong \overline{DC}$ - given;
$\angle ACB\cong \angle DCE$ - as vertical angles (by vertical angles theorem)

Hence, triangles ACB and DCE are congruent by SAS postulate.

2. congruent triangles have congruent corresponding sides, so

$\overline{BA}\cong \overline{ED}$

3 0

3 years ago