3 years ago

Please I really need help

Mathematics

2 answers:

EleoNora [17]3 years ago

5 0

Answer:x=3

Step-by-step explanation:

What you do is add 5+26 but change 5 to a negative so -5+26 and then divide 7x and 21 which gets 3

viva [34]3 years ago

3 0

You’re answer would be B

You might be interested in

Savanna makes annual contributions in the amount $1500 on average to a traditional IRA. She wants to retire and 37 years. She is

givi [52]

1,500×(((1+0.065)^(37)−1)
÷(0.065))=214,122.37

214,122.37−(214,122.37×0.10)
=192,710.13...answer

8 0

3 years ago

Forth grade math: What happens to the area of the triangle when one of the dimensions is doubled and halved?

Alja [10]

$\bf \textit{area of a triangle}\\\\ A=\cfrac{1}{2}bh~~ \begin{cases} b=base\\ h=height\\[-0.5em] \hrulefill\\ b=\stackrel{doubled}{2b} \end{cases}\implies A=\cfrac{1}{2}(2b)(h)\implies \stackrel{\textit{twice as the original area}}{A=bh} \\\\[-0.35em] ~\dotfill$

$\bf \textit{area of a triangle}\\\\ A=\cfrac{1}{2}bh~~ \begin{cases} b=base\\ h=height\\[-0.5em] \hrulefill\\ h=\stackrel{halved}{\frac{h}{2}} \end{cases}\implies A=\cfrac{1}{2}b\left( \cfrac{h}{2} \right)\implies \stackrel{\textit{half of the original area}}{A=\cfrac{1}{2}bh\left( \cfrac{1}{2} \right)}$