3 years ago

Evaluate the expression is a=2 and b=-1. 20-3b

Mathematics

1 answer:

Tom [10]3 years ago

5 0

Answer:

Step-by-step explanation:

20 - 3(-1)

20 - (-3)

20 + 3 =

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0.5x-7= 0.3 solve the equation<br><br><br><br><br>

Lena [83]

Answer:

<h3> $\boxed{ \bold{ \boxed{ \sf{x = 14.6}}}}$ </h3>

Step-by-step explanation:

$\sf{0.5x - 7 = 0.3}$

Move 7 to right hand side and change it's sign

⇒ $\sf{0.5x = 0.3 + 7}$

Add the numbers

⇒ $\sf{0.5x = 7.3}$

Divide both sides of the equation by 0.5

⇒ $\sf{ \frac{0.5x}{0.5} = \frac{7.3}{0.5} }$

Calculate

⇒ $\sf{x = 14.6}$

Hope I helped!

Best regards!!

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4 years ago

Clare says’ this classroom is 11 m long in metres longer than a year so if I measure the length of the classroom I will get less

Vlad [161]

Answer:

No I don't agree with Clare.

You will get more than 11 yards

Step-by-step explanation:

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3 years ago

Can someone please help me with this its urgent I don’t get it

Varvara68 [4.7K]

Answer:

$1,221

Step-by-step explanation:

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$121+ $1100= $1221

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3 years ago

How can you find two facts to find 4 x 8

elena-s [515]

2x2 is 4 and 4x2 is 8 therefore 2 is a factor of 8 and 4

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Which of the following illustrates the truth value of the given statements? P: 7 is an even number or Q: 3 is the square root of

Julli [10]

P is false and Q is false so P V Q is false too

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4 years ago

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